AbsListView.java revision b72fe7a2635906d6244efedfe302c2c46e564803
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.Handler; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 311cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 37f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 38539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powellimport android.util.SparseArray; 39f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 40079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 41f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 42637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 48f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 5613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 58a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 59c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.view.accessibility.AccessibilityManager; 60a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 610b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 620b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 64b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 65b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 69335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohenimport com.android.internal.R; 70335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 75d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 76d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 77d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 88f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 92499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 93499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 959d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 96539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 97539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1464e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1510a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 24714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 24814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 24914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 25114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 269499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 270499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 272499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 273499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 274539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 275539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 276539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 277539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 278539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2792148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2802148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2812148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2822148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2832148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 294079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 295079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 296079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 297079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 298079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3540211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell PositionScroller mPositionScroller; 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4780b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 48914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 49014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 49114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 49214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 49314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 49414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 49514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 540d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 541d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 542d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 543d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 544d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 571d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 573d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5786dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5796dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 580161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 5814296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5824296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 58321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 58824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 58924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6026dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 61989935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62489935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 646da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 647da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 648da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 649da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 650da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 65107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 65207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 65307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 654c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 655c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 656c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 657c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 658c1d7e770e123adfa992d013fa294693d077cbc78alanv 6594e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6604e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 662da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 663b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 664b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 665a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 666b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 667b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 668ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 669ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 670ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 671ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 672ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6730b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6740b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 726e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 727e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 728e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 729e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 730e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 731e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 732e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 733e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 734e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 735e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 736e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 737e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 738e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 739e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 740e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 741e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 793f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 79420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 79520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 796f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 800d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 801d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 802df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 803d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 804d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 805d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 806d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 807d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8084296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8094296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8104296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8114296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 815d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 816d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 82389935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 82489935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 833d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 839539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 840539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 84214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 93714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 976a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 977a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 978a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 979a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 980a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 981a798170f2abe198f806b12dd904830bc25257525Adam Powell } 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 99014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 102214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1041bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 104529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 105314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1066bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 106829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 107614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 108229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 108529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 108629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 108729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1090bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1091bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1092bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 109829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 109929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 110029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 110129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 110229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 110329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 110429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 110529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 110629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 110729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 110829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 110929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 111029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 111129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 111229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 111329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 111429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 111529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 111929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 114814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1176637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1177637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1178637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11792bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11802bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1181637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11824ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11834ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1184637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1185637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1186637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11880a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12080a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 121020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 121120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 121220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 121320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 121420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 121520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 121620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 121720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 121820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 121920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 122020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 122120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 123420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 123520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 123620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 123720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 123820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 123920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 124020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 124120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 124220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 124520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 124616bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 124720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 124820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 125020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 125120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 125220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12610a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 126220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 126320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 126420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 126520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 126620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 126720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12720a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12940a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13330a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1336a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 13374e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 13384e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 13394e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 13404e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 13414e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1342d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1343d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1344d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1345d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 13469c3e0e68260fe50456996d75304b73054cbde94aalanv return; 13474e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1348d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1349d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 13504e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13514e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13524e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 13534e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13544e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 13558a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13568a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 13578a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 13588a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 13598a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13608a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13618a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13628a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 13638a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 13648a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1365fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1366fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1367fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 1368fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1369fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1370fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 1371fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1372a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1373a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1374a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1375a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1376a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 137748d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 137848d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 137948d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1380a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1381a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1382fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1383a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1384a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1385a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1386a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1387a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1388a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1389fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1390a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1391a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1392a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1393a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1394a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1395a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 139648d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 13978a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13988a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 14636bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1519a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 15202614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1521f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 152214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1542a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 15432614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1544f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 154543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 154643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 154714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 154843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 154943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 155043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 155143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 155214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1553f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1565a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 15662614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1567f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 156843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 156943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 157043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 157143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 157243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 157314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1585f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1586f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1605f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 161599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16267becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 16277becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 16287becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 16297becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 16307becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 16317becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 16327becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 16337becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 16347becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 16357becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 163899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 163999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 164099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 164199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 164299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 164399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1662a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1663a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 16649a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 16659a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 16669a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16679a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 166814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 16699a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 16709a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 16719a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 16729a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16739a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 16749a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16752614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1676f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1677335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1678335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1679335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1680335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1703079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1713f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1714f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1715f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1716f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1717f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1718f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1719f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1720f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 17212614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 17222614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1723a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1724a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1725a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1726a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1727a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1732d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1733d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 17390a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17650a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17740a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1779b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1780b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1781b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1782b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1783b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1784b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1785b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1804161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1811079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18550b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 18560b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 18760b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 18770b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 18780b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 18830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 18840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 18850b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 18860b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1935da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1936da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1937da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1938da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1939ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 1940da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1941da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1942ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 1943da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1944da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1947d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1948d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1949d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1950d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1955f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1956f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1957f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1958f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1959f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1960f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1961f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 19622c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 19632c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 19642c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 19652c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1966f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1969637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1970637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1980d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1981d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1982d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1983d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1984d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1985d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1986d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1987d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1993d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1994d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1995d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 209821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 209921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 21004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 210321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 210421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2107539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2108539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2109539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2110539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2111539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21184213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21194213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21204213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21214213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2123079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 212721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2128a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2129a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 21334213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21344213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21354213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21364213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21374213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2143aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2144aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2145aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2146aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2147aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2148aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2149aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2150aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2151aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2152aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2153aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2154aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2155aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2156aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2157c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2158c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2159c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2160c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2161b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2162b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2163b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2164c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2165c1d7e770e123adfa992d013fa294693d077cbc78alanv 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2170c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2171c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2172c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2173c1d7e770e123adfa992d013fa294693d077cbc78alanv 2174c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 21759c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 21769c3e0e68260fe50456996d75304b73054cbde94aalanv 21779c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 21789c3e0e68260fe50456996d75304b73054cbde94aalanv return; 21799c3e0e68260fe50456996d75304b73054cbde94aalanv } 2180c1d7e770e123adfa992d013fa294693d077cbc78alanv 21819c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 2182c1d7e770e123adfa992d013fa294693d077cbc78alanv return; 2183c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2184c1d7e770e123adfa992d013fa294693d077cbc78alanv 21859c3e0e68260fe50456996d75304b73054cbde94aalanv if (position == getSelectedItemPosition()) { 21869c3e0e68260fe50456996d75304b73054cbde94aalanv info.setSelected(true); 21879c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 21889c3e0e68260fe50456996d75304b73054cbde94aalanv } else { 21899c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 21909c3e0e68260fe50456996d75304b73054cbde94aalanv } 21919c3e0e68260fe50456996d75304b73054cbde94aalanv 21929c3e0e68260fe50456996d75304b73054cbde94aalanv if (isClickable()) { 2193c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 2194c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setClickable(true); 2195c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2196c1d7e770e123adfa992d013fa294693d077cbc78alanv 21979c3e0e68260fe50456996d75304b73054cbde94aalanv if (isLongClickable()) { 2198c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 2199c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setLongClickable(true); 2200c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2201c1d7e770e123adfa992d013fa294693d077cbc78alanv 2202c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2203c1d7e770e123adfa992d013fa294693d077cbc78alanv 2204c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2205c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2206fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2207fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2208fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2209fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2210c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 22119c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2212c1d7e770e123adfa992d013fa294693d077cbc78alanv 22139c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 22149c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2215c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2216c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2217c1d7e770e123adfa992d013fa294693d077cbc78alanv 22189c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 22199c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2220fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2221fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2222fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2223c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2224c1d7e770e123adfa992d013fa294693d077cbc78alanv 2225c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 22269c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 22279c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 22289c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 22299c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 22309c3e0e68260fe50456996d75304b73054cbde94aalanv } 22319c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2232fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 22339c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 22349c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 22359c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 22369c3e0e68260fe50456996d75304b73054cbde94aalanv } 22379c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2238fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2239fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2240c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2241c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2242fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2243fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2244fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2245c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2246c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2247fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2248c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2249c1d7e770e123adfa992d013fa294693d077cbc78alanv 2250fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2251c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2252c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2253c1d7e770e123adfa992d013fa294693d077cbc78alanv 2254079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2255079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2256079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2257079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2258079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2261e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2262e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2263e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2270a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2271079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2272079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 231320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 231420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 231520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 231620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 231720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 231820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 231920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 232020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 232120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 232220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 232320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 232420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 232520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 232620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 232720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 232820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 232920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 233020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 233120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 233220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 233320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 233420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 233520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 233620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 233720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2343d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2376079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2420079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2438df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2439df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2440df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2441df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2445079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2449ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2450ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2451ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2452ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2459df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2460df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2480079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2481079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2482079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2483079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2484079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2485079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2486079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2487079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2488079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2489079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2493079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2536e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2537e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2538e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2539e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2540e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2541e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 25460e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 25470e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 25480e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 255182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 255282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 255382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 25546a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 25556a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 25566a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 25576a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 25586a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 255982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2560b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25671f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 25681f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 25691f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 257021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 257121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 257221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 25740e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 25750e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 25769d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 25770e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 257982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 258082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 258182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 258282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 258382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 25841cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 25851cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 25861cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 25871cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 25881cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 25891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 25901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 25911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 25921cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 25931cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2594d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2595d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2596d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2597d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2598d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2599d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 26004032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2601d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2602d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2603d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2604d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2605d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2606d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2607d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2608d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2609d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2610d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2611d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2612d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2613d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2614d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2615b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2626670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2627670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2628670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2629670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2630670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 26314032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 26324032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 26334032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2634458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2635458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 26360fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2638458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2639458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2640670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 264997566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 26950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27040a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2713005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2714005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2715005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2716005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2717005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 27187890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 27197890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 27207890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 27217890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 27227890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 27237890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 27370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27500a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27748350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2776f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2777f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 27781e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 27791e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2780f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 27811e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2782f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2783f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2784f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2786f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2806fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2807fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2808fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2809fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2810fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2811fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2812fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2813fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2814fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2815fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2816fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2817fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2818fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2819fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2820fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2845df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2846df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2847df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2848df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2849df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2854dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2855dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2856dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2857df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2858dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2860dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 286245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 286345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 286445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 286545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2869dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 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 * Maps a point to a the rowId of the item which intersects that point. 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2936079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2937079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 2938e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29640a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 297178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 297478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2976637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 297978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 298078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 298178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 298278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 298378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 298478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 298578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 300113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 300213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 300313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 300413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 300578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 301278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 301378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 301478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 301578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 301678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 301778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 301878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 301978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 302078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 302178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 302278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 302378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 302478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 302578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 302678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 302778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 302878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 302978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 303078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 303178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 303278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 303378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 303478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 303578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 303678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 303778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 303878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 303978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 304078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 304178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 304278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 304378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 304478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 304578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 304678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 304778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 304878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 304978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 305178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 305278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 305378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 305478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 305578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 305778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 305878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 305978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 306078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 306178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 306278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 306378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 306478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 306578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 306678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 306778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 306878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 306978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 307078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 307178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 307278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 307378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 307478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 307578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 307678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 307778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 307878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 307978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 308078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 308178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 308278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 308378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 308478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 308578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 308678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 308778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 308878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 308978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 309078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 309178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 309278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 309378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3094a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 309578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 309678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 309778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 309878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 309978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3100a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 310178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 310578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 310778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 310978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 311078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 311178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 311278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 311378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 311478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 311578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 311678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 311778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 311878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 311978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 312078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 312178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 312278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 312378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 312478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 312578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 312678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 312778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 312878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 312978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 313078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 313178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 313278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 313378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 313478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 313578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 313678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 313778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3138a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 313978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 314078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 314178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 314278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 314378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3144a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 314578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 314678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 314778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 314878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 314978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 315078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 31519d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 31529d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 31539d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 315478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 31569d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 31579d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 315878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 315978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 316078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 316178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 316278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 316378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 316478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 316578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 316678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 316778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 316878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 316978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 317178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 317278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31881e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3189637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3190637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31954032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 31964032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 31974032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 32010fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3211dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3212dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3213dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3214dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3215dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3216dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 32171fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 32181fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 32191fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 32201fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 322128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 322228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 322328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 322428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 322528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 322628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 322728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 322828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 323582f3495b146b267f3786997752cef25310176349Romain Guy 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 32379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 32399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 324013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 32419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 32449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 3245637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3246637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3247637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 32484032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 32494032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 32504032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3251637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3252044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 3253637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 3254637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3255637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3256044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 3257637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3258637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3260637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 3261637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3262637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 3263637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 3264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 3265637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 3266637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 3267637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 32680a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 32690a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 32700a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 3271637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 3273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 3274637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 3275637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3276637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3277637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3278637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 3279637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 3280637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 3281637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3282637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3283637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 3284637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 3285637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32869d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 328779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 32889d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3289637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 3290637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 3291637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 3292637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 3293637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3294637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3295637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3296637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3297637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3298637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3299637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3301fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 3302fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 3303fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 3304fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 3305fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3306fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 33112585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 33122585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 33132585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 33142585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 33152585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 33164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 33176f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 33186f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell if (mDataChanged) { 33196f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // Re-sync everything if data has been changed 33206f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // since the scroll operation can query the adapter. 33216f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell layoutChildren(); 33226f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 33236f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 33259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 33289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 33299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 333078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown startScrollIfNeeded(y); 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 3333637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 333478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 3335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3347498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3348498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3349498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3350498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3351498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3373005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3374005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3378079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 33836198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3386d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3387d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3388d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3389d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3390d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3392079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3396d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3399d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3400d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3401d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3402005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3403005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3404079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 34059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3407005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3408d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3412079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 34139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 34156198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 34166198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3417637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3418637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3419637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3420637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3421637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 34226198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3423637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 34246198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 34256198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 34266198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 34276198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 34286198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3429637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 343021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 343121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3432637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3433637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3434637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3435637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3436637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3437637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3438637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3439637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3440637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 34416198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 34426198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 34436198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 34446198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 34454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34466198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3447f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3448f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3449f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3450d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3451d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3452d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 34534032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 34544032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 34554032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 34566198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 346279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3472637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3473637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3474637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3475637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3476637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3477637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3478637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 34830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 34910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 34929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 349713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 34984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 35039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35071cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 35081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 35091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 35101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 35111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3516637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3517637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3518637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3519637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3520637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3521637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3522637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3524637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3525637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3526637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3528637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3529637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3530637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3531637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3532637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3533637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3534637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3535637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3536637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3537637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3538637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3539637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3540637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3541637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 354213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3545637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3546637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3547637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3548637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 35504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 35514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 35544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 35554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 35564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 35574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 35584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 35594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 35604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 35614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 35624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 35634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 35654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35679bc30d31322848d61f518c1db43544988faaba8fAdam Powell 35689bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 35699bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 35709bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 35719bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 35729bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 35739bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 35749bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 35759bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 35769bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 35779bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 35789bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 35799bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 35809bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 35819bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 35829bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 35839bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 35849bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 35859bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 35869bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 35879bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 35889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35940a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 35950a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 35960a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 35970a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 35980a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 35990a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 36000a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 360533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 360633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 360733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 360833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 360933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 361033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 361133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 361233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3613275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 361433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 361533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 361633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 361733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 361833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 361933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 362033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 362133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 362233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 362333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 362433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 363107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 363207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 363307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 36359d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 36369d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3637a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 36399d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3640a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 364607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 364707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 364807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 36519d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 36529d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 36539d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3654e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3655a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 36579d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3658a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3659a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3666637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3671637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3673637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3674637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 367807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 367907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 368007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 368107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 368207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 368307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 368407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 368507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 368613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 368713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 368813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 368913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 369013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 369113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 369213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 369313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 369413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 369513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 369613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 369713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 369813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 369913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 370013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 370113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 370213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 370313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 370413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 370513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 370613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 370713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 370813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 370913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 371013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 371113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 371213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 371313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 371413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 37190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 37201fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 37211fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 37221fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 37231fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 372428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 372528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 372628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 372728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 372828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 372928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 373028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 373128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 37394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 374179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37464e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 37484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 37494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 37504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 375279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 376413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 376513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 376679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 37674b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 37684b4f40f84e72579417604143e5f42115769649b8Romain Guy } 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 37752585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 37762585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 37772585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 37782585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 37792585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 37804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 378113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 378213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 378378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 379113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 37944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 379513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 38014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 38024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 38034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 38104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 38114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 38124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 38134cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 38144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 38154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 38164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 38174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 38184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 38194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 38214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 38224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 38449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 38580046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 38679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 38729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3880d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3881d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3882d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3883d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3885d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3886d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3887d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3888d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3889d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3890d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3891d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3892b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 3893b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 3894d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3895d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3896d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3897d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3898d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3899b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3900d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3901d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3902d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3903d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3904d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3905d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 390679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 39089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 391079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 39129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 39130b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 39169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 39171fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 39189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39251cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 39261cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 39271cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 39281cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 39299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3933637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39351fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3938e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3939637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3940637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3941637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3942637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 39430b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 3944044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 3945044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 3946637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3947637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39481fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3949637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3950637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3951637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3952637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3953637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3954637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3959637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3962637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39634032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 39644032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 39654032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 39664032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 39674032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3968637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3969637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39701fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3971637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3972637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 39730b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 3974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 39760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 3977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 39791fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3982d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 398579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3986d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 398721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 398821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 398921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3990d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 39915e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 39925e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 39935e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 39945e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 39955e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3996d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3997d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3998d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3999d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 400379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 400479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4005d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4008d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4009d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4010d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4011d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4012d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4013637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 40147f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 40157f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 40167f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 40177f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 401879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 401979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 402079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 402179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4023637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4024637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4025637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4028637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4029637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4031637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4033637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4034637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4038637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4039637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4040637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4041637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4042637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4043637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 40449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4045637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4046637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4047d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4048637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4049637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4051d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4052637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4053637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 40609d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 40619d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4063637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4064637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40693cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 40703cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 40713cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4074637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 40769d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 40781fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4080637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4081637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4082637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4085637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4086637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4087d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4090637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4091637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4094637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4101044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4102044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4105044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4106044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4107044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4108044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4109044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4110044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4111044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4112044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4113044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4114044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4115044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4116044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4117637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41191fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4121637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41294e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4131e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 41324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4133458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4135458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4136458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4137e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 41384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4141458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 414452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4145e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4146e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 41474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4152e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 41534032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 41544032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4155aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4156aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4157161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4158aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4159aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4160aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4161161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4162aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4163aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4164aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4165e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4166e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4167e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4168e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4169e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4170e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4172e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 41734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41744bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 41750061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 41760061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 41770061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - clampedPosition + 1; 4178458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 41790061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 41800061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = clampedPosition - lastPos + 1; 4181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4182458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 41830061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 4184458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4185458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4191458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41920061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4194458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 41954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41961fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4199e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 42004032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42014032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4202458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4207aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4208aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4209161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4210aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4211aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4212aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4213161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4214aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4215aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4216aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4217e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4218e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4219e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4220e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4221e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4222e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4224e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 42254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42264bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 42270061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 42280061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 4229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4230458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4231458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4232458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4233458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42350061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = firstPos - clampedPosition + 1; 4236458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4237458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4238458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4240458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4241458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4242458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42440061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 4245458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4248458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 42510061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = clampedPosition - lastPos + 1; 4252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4253458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4254458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4255458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 42610061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 4262458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4268458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4269458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42700061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4271458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 42734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42741fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4276e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4277e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4278322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4279322171b333a1c796fcc1428a96ea1d854a3881faErik } 4280322171b333a1c796fcc1428a96ea1d854a3881faErik 4281aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 42824032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42834032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4284aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4285aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4286aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4287161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4288aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4289aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4290aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4291161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4292aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4293aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4294aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4295aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4296aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4297aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4298aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4299aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4300aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 43011fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 43021fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 43030061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 4304e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4305e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4306e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4307e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4308e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4309e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4310371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4311e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 43124bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43130061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (mTargetPos < firstPos) { 43140061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - mTargetPos; 43150061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (mTargetPos > lastPos) { 43160061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = mTargetPos - lastPos; 4317e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4318e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 43190061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 43200b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4321e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4322e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4323e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4324371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 43254ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 43260b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 43270b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4328371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4329234a5715309ea74757780aff6123e3144efb5b69Adam Powell 43301fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4331e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4332e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4333e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4334e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4335e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4336e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4337e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4338e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4339e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4340e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4341e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4342e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4343e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4344e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4345e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4346e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4347e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4348e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4349e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4350e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4351e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4352e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4353e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4354e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4355e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4356e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4357e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4358e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4359e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4360e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4361e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4362e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4363e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4364e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4365e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4366e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4367e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4368e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4369e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4370e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4371e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4372e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4373e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4374e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4375e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4376e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4377e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4378e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4379e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4380e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4381e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4382e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4383e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4384e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4385e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4386e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4387458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4388458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4390e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 43944e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4395458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4396458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4397458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4398458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 43994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44000b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 44010b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 44020b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4403458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44061fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4410458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4411458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4412458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4413458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 44141fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 44151fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4416458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44171fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 44180b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4420458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 44217e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 44221fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4425458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4427458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4428458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4429029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 44304e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4431029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4432029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4433458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4434458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4435458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4436458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4437458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4438458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44391fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4440458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4441458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4442458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4443458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4444458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4445458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 44461fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 44477e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4448458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 44490b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4450458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4451458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4452458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44531fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4454458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 44560b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4457458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4458458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4460458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4462458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4463458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4464458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44651fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4466458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4467458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4468458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4469458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 44700b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 44710b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 44720b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4473458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 44741fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 44751fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4476458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4478458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4479458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4480458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44817e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 44821fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4483458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4484458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4485458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4487458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4488458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4490458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4491458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4493458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4494458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4495458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44960b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4497458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4498458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4500458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4501458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4502458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 45041fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 45067e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 45070b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 45081fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4511458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 45130b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4515458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4516458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4517458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4518458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4519e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4520234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4521234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 45220b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4523234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4524234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4525e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4526371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4527234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4528234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4529e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4530371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4531e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 45324032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4533e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 45344032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 45354032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 45364032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 45374032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 45384032252c997be9f5d013054dc23ace855007b3a5Adam Powell 45394032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 45404032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 45414032252c997be9f5d013054dc23ace855007b3a5Adam Powell 45424032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 45434032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 45440b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 45450b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 45460b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 45471fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4548e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 45490b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 45500b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 45510b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 45521fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4553e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4554e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4555e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4556234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 45570b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 45580b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 45590b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4560e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4561e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4562e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4563e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4564458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4566458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4567458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4568458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4570458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 45714bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 45724bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 45734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 45744bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 45754bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 45764bede9e425875542976a422222510fa4056a8339Romain Guy */ 45774bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 45784bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 45794bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 45804bede9e425875542976a422222510fa4056a8339Romain Guy } 45814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 45824bede9e425875542976a422222510fa4056a8339Romain Guy } 458321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 458421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 458521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 458621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 45874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 458821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 458921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 459021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 459121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 459221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 45934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 45944bede9e425875542976a422222510fa4056a8339Romain Guy /** 4595458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4596458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4597458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4598458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4599458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4600458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4601458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4602458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4603458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4604458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4605322171b333a1c796fcc1428a96ea1d854a3881faErik 4606322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4607322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4608322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4609322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4610322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4611322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4612322171b333a1c796fcc1428a96ea1d854a3881faErik * 4613322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4614322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4615322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4616322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4617322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4618322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4619322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4620322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4621322171b333a1c796fcc1428a96ea1d854a3881faErik } 4622322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4623322171b333a1c796fcc1428a96ea1d854a3881faErik } 4624322171b333a1c796fcc1428a96ea1d854a3881faErik 4625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4626e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4627e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4628e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4629e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4630e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4631e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4632e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4633e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4634e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4635e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4636e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4637e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4638e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4639e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4640e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4641e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4642e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4643e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4644458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4645458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4646458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 46474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4648458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4649458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4651458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4653458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4654458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4655458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4656458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4657458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4659458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4663458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4664458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 46650b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 46660b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 46670b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 46680b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4669458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4670458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46724032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4673299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 46744032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 46754032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 46764032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 46774032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 46784032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 46794032252c997be9f5d013054dc23ace855007b3a5Adam Powell 468079303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 46814032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4682aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 46834032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 46844032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 46854032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 46864032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 46874032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 46884032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 46890046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 46900b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4691299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4694499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4695499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4696499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4697499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4698499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4699499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4700499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4701499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4702499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4703499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4704499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4705499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4706499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4707499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4708499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4709499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4710499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4711499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4712499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4713499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4714499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4715499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4716499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4717499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4718499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4719499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4720499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4721499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4722499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4723499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4724499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4725499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4726499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4727499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4728499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4729499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 47319d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 47340211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 47399d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 47409d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 47419d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 47429d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 47439d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 47449d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 47459d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 47469d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 47479d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 47489d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 47499d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 47509d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 47519d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 47526dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 47536dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 47549d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 47559d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 47569d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4771458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4780bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4781bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4782bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4783bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4784bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4785bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4786bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4787bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4788bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4790bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4791bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4807458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4809637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4811bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4816bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 48210a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 48220a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 48230a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 48240a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48260a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4830458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4832029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4833029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4834029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4835029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 48399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 48429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 48448c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 48458c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 48468c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 48478c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4848458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4849458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4850458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4851458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4852458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4853458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4855458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4856079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 48579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4859458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4860458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 48618c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 48628c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 48638c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 48648c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4865458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4866458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4869458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4871458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4872458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4874079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4886539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 4887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4888539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 48899d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 48909d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 48919d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 48921fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 48939d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48949d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 4895458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4901458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4902458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4903458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4906029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 49072a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 49082a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4909079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4910079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4911079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4912079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4913079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4914079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 49152a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4916079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4917079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4918029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4919029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4921458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4922458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 49234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4959ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4960ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4961ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 49904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4996637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4997637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4998637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4999637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5000637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5001637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5002637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5004637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5006637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5007637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5008637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5009637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5010637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50194e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 50204e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 50218d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 50228d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 50234e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 50248d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5025becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5026becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5027becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 50284e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 50298d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 50304e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 50349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 51264032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 51274032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 51284032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 51353c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 514614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 514714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 514814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 514914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 515014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 515114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 515214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 515314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 515414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 515514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 515614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 515714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 515814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 515914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 516014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 516114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 516214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 516314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 516414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 516514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 516614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 516714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 516814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 516914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 517014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 517114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 517214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 517314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 517414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 517514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 517614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 517714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 517814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 517914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 518014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 518114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 518214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 518314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 518414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 518514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 518614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 518714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 518814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 518914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 519014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5194ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5195ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 519714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 519814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 519914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5201539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5202539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5203539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 520414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 520514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52130785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5216da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5217da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5218da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5219da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5220da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5221da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 52220785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5223ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 52240785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 52250785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5226ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5227ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 52280785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 52290785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 52300785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 52310785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 52320785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 52330785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 52340785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 53219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5327079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 533143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 533243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 533343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 533443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 533543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 533643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 533743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 533843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 533943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 534043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 534143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 534243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 534343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 534443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 534543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 534624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 534743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 534843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5352d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 53644df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5365b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5371b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 537524443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5378b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54244e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 54254e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 54264e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 54274e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 54284e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 54294e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 54304e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 54334e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 54344e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5455b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 547183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 54728d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 54738d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5474b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5475b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5476b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5477b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 547883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 547983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 548083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 548183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 548283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 548383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5489cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5493b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5498105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5520b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5521b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5522b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5523b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5524c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5525c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5526c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5527c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5528c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 55291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 55301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 55311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 55321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 55331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 55341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 55351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 55361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 55371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 55381bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 55401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 55411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 55421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 55431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 55441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 55451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 55461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 55471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 55481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 55491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 55501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 55521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 55541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 55561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 55571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 55581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 55591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5560c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 55611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 55621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 55641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 55661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 55671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 55681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5569c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5570c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5571b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 55720a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5573b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5574b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5575b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5576b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5577b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5578b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5579b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5580b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 55810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5582b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 55914df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 55924df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5595b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5596b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5597b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5598b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5599b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5600105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5611d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 564324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 564843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 56571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 56641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 56651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5668c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 56699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 56719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 56749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 56771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 56859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 56951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 56969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5708aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5709aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5710aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5711aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5712aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5713aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 57149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 57159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 57169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 57379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 57595be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 57605be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 57615be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 57625be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 57635be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 576852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 576952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 577052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 577152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 577252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 577352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 577452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 577552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57847b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 57919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 58029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 580313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 5807c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5823637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 582513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5826499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5827499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5828499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5829499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5830499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 58319b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 58329b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 58333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 58343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 58353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 58363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 58373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 58383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 58393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 58409b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 58412148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 58429b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5843499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5844335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter.isDataReady()) { 5845335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen setAdapter(mRemoteAdapter); 5846335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 5847499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5848499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5849499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 58502148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 58512148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 58522148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 58532148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 58542148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 58552148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 58562148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 58572148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5858499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5859499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 586016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5861499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5862499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 58632148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 58642148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 58652148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 58662148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 586716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5868fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5869fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 587016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5871499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 587216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5873499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5874499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5875499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5876499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5877499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5878499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5879fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5880fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5881fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5882fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5883fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5884499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5885499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5886499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5887b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 5888b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 5889b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 5890b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 5891b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 5892b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 5893b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5894b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5895b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 5896b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 58979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 58989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 58999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 59009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 59089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 59099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5911b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5912b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5913b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5914b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5915b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5916b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5917b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5918b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5919b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5920b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5921b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5922b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5923b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5924b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5925b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5926b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5927b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5928b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5956a798170f2abe198f806b12dd904830bc25257525Adam Powell public boolean hasWrappedCallback() { 5957a798170f2abe198f806b12dd904830bc25257525Adam Powell return mWrapped != null; 5958a798170f2abe198f806b12dd904830bc25257525Adam Powell } 5959a798170f2abe198f806b12dd904830bc25257525Adam Powell 5960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 60039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 60049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 60069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 60089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 60099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6010bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 60119bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 60129bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 60139bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 60149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 60159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60164df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 60174df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 60184df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 60194df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 60204df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 60214df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6022bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 60234df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 60244df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 60250bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 60260bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 60270bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 60280bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 60290bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 60300bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 60310bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 60320bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6033bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 60340bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 60350bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6036079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6037079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6038079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6039079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6040079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6041079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6042079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6043539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6044539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6045539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6046539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6047539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 60489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 60499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 60509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 60539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 60549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 60579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 60589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 60599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 60629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 60639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 60689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 60699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 60709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 60729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 60739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 60759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 60779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 60789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 60799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 60819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 60839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 60879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 60889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 60899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 60909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 60919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 60939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 60949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 60969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 60979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 61069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 61079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 61089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 61109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 61139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 61159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 61179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 61199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6120539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6121539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6122539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6123539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 61249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 61259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 61269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 61279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 61299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 61309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 61319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 61329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 61349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 61359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 61369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6138f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6139f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6140f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6141f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6142f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6143f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6144f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6145f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6146f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6147f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6148f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6149f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6150f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6151f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6152f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6153f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6154f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6155539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6156539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6157539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6158539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6159539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6160539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6161f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 61620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 61639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 61649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 61659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 61699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 61719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 61729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 61739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 61749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 61759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 61769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 61789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 61799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 61809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 61819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 61829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 61839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 61849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6187539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6188539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6189539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 61909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 61949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 61969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 61979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 61989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 62009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 62019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 62029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 62049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 62069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 62079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 62089c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 62099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 62109c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 62119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 62129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 62134df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 62149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 62209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 62219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 62239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 62249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 62269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 62279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 62289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 62299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 62309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 62319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 62329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 62349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6236539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6237539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6238539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6239539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6240539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int index = mTransientStateViews.indexOfKey(position); 6241539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (index < 0) { 6242539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6243539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6244539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final View result = mTransientStateViews.valueAt(index); 6245539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.removeAt(index); 6246539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return result; 6247539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6248539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6249539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6250539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6251539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6252539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6253539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6254539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6255539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6256539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6257539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 62609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 62629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6263079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 62649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 62659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 62669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6267079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 62689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 62719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6274539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 62759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 62779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6278079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 62799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 62809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 62819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 62829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6284539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6285539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 62879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 62889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6289539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6290539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6291539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || scrapHasTransientState) { 6292539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6293539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6294539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6295539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6296539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6297539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6298539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6299539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6300539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6301057a585fba01d92c38f27a8c080622dfd0c6f556Adam Powell scrap.dispatchStartTemporaryDetach(); 6302539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(position, scrap); 63039b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 63049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 63059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6307539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 63089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 63099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 63109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 63129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6314c1d7e770e123adfa992d013fa294693d077cbc78alanv scrap.setAccessibilityDelegate(null); 63159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 63169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 63179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6321539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6322539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6323539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6324539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6325539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6326539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6327539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6328539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6329539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6330539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6331539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6332539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6333539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6334539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 63359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 63369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 63389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 63399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 63409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 63419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 63439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6344a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 63459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 63469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6347079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6348079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6349079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 63509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 63529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6353539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6354539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 63559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6356539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || 6357539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 63589b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 63599b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6360539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6361539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6362539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6363539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6364539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(mFirstActivePosition + i, victim); 6365539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 63669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 63679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 63709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 63719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6372a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6373079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 63749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 63759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6376c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 63779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 63789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 63799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 63849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 63889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 63899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 63919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 63929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 63939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 63949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 63959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 63969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 63979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 63989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 63999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 64009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 64019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6403bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6404bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6405bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6406bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6407bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6408bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6409bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6410bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6411bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6412bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 64139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 64179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 64199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 64209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 64219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 64229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 64239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 64249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 64259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 64269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 64279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 643052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 643152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 643252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 643352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 643452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 643552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 643652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 643752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 643852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 643952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 644052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 644152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 644252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 644352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 644452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 644552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 644652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 644752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 644852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6449266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 645052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 645152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 645252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 645352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 645452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 645552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 645652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 645752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 645852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 645952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 646052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 646152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 646252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 64639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6464079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6465079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6466079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6467079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6468079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6469079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6470079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6471079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6472079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6473079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6474079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6475079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6476079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6477079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6478079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6479079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6480079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6481079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 64829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6483