AbsListView.java revision c1d7e770e123adfa992d013fa294693d077cbc78
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 19234a5715309ea74757780aff6123e3144efb5b69Adam Powellimport com.android.internal.R; 20234a5715309ea74757780aff6123e3144efb5b69Adam Powell 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 22499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 28c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.os.Bundle; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 39f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 40539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powellimport android.util.SparseArray; 41f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 42079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 43f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 44637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 50f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 51f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 5813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 60a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 61c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.view.accessibility.AccessibilityManager; 62a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 630b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 640b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 66b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 67b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 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; 5804296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5814296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 58221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 58724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 58824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6016dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 61889935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62389935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 645da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 646da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 647da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 648da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 649da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 65007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 65107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 65207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 653c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 654c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 655c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 656c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 657c1d7e770e123adfa992d013fa294693d077cbc78alanv 6584e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6594e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6604e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 661da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 662b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 663b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 664a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 665b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 666b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 667ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 668ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 669ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 670ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 671ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6720b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6730b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6740b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 725e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 726e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 727e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 728e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 729e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 730e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 731e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 732e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 733e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 734e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 735e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 736e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 737e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 738e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 739e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 740e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 792f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 79320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 79420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 799d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 800d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 801df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 802d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 803d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 804d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 805d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 806d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8074296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8084296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8094296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8104296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 814d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 815d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 82289935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 82389935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 832d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 838539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 839539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 84114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 93614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 98314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 101514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1034bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 103829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 104614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1059bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 106129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 106914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 107529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 107829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 107929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 108029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1083bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1084bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1085bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 109129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 109229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 109329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 109429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 109529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 109629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 109729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 109829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 109929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 110029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 110129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 110229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 110329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 110429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 110529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 110629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 110729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 110829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 110929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 111229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1114f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 114114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11722bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11732bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11754ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11764ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1177637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1178637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 120320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 120420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 120520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 120620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 120720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 120820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 120920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 121020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 121120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 121220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 121320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 121420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 121520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 121620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 121720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 121820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 121920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 122020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 123220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 123320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 123420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 123520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 123820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 123916bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 124020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 124120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 124320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12540a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 125520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 125620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 125720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 125820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 125920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 126020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12650a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13260a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1329a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 13304e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 13314e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 13324e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 13334e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 13344e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1335d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1336d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1337d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1338d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 13394e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov return; 13404e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1341d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1342d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 13434e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13444e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13454e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 13464e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13474e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 13488a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13498a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 13508a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 13518a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 13528a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13538a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13548a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13558a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 13568a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 13578a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 13588a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13598a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 14246bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1480a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 14812614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1482f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 148314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1503a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 15042614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1505f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 150643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 150743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 150814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 150943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 151043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 151143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 151243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 151314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1514f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1526a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 15272614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1528f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 152943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 153043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 153143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 153243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 153343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 153414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1546f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1547f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1566f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 157699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15877becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 15887becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 15897becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 15907becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 15917becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 15927becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 15937becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 15947becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 15957becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 15967becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 159999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 160099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 160199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 160299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 160399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 160499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1623a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1624a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 16259a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 16269a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 16279a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16289a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 162914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 16309a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 16319a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 16329a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 16339a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16349a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 16359a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16362614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1637f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1660079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1670f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1671f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1672f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1673f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1674f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1675f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1676f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1677f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 16782614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 16792614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1680a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1681a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1682a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1683a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1684a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1689d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1690d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 16960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17310a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1736b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1737b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1738b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1739b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1740b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1741b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1742b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1767079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18110b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 18120b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 18320b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 18330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 18340b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 18390b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 18400b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 18410b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 18420b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1891da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1892da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1893da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1894da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1895ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 1896da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1897da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1898ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 1899da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1900da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1903d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1904d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1905d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1906d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1911f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1912f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1913f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1914f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1915f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1916f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1917f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 19182c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 19192c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 19202c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 19212c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1922f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1926637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1936d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1937d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1938d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1939d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1940d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1941d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1942d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1943d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1949d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1950d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1951d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 205421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 205521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 20564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 205921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 206021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2063539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2064539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2065539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2066539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2067539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20794213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 20804213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 20814213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 20824213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2089079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 209721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2098a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2099a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 21034213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21044213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21054213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21064213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21074213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2117aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2118aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2119aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2120aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2121aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2122aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2123aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2124aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2125aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2126aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2127aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2128aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2129aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2130aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2131c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2132c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2133c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2134c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2135c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2136c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2137c1d7e770e123adfa992d013fa294693d077cbc78alanv 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2141c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2142c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2143c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2144c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2145c1d7e770e123adfa992d013fa294693d077cbc78alanv 2146c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 2147c1d7e770e123adfa992d013fa294693d077cbc78alanv 2148c1d7e770e123adfa992d013fa294693d077cbc78alanv if (position == INVALID_POSITION) { 2149c1d7e770e123adfa992d013fa294693d077cbc78alanv return; 2150c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2151c1d7e770e123adfa992d013fa294693d077cbc78alanv 2152c1d7e770e123adfa992d013fa294693d077cbc78alanv if (isClickable()) { 2153c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 2154c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setClickable(true); 2155c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2156c1d7e770e123adfa992d013fa294693d077cbc78alanv 2157c1d7e770e123adfa992d013fa294693d077cbc78alanv if (isLongClickable()) { 2158c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 2159c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setLongClickable(true); 2160c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2161c1d7e770e123adfa992d013fa294693d077cbc78alanv 2162c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 2163c1d7e770e123adfa992d013fa294693d077cbc78alanv 2164c1d7e770e123adfa992d013fa294693d077cbc78alanv if (position == getSelectedItemPosition()) { 2165c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setSelected(true); 2166c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2167c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2168c1d7e770e123adfa992d013fa294693d077cbc78alanv 2169c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2170c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2171c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 2172c1d7e770e123adfa992d013fa294693d077cbc78alanv 2173c1d7e770e123adfa992d013fa294693d077cbc78alanv if (position == INVALID_POSITION) { 2174c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2175c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2176c1d7e770e123adfa992d013fa294693d077cbc78alanv 2177c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2178c1d7e770e123adfa992d013fa294693d077cbc78alanv 2179c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 2180c1d7e770e123adfa992d013fa294693d077cbc78alanv case AccessibilityNodeInfo.ACTION_SELECT: 2181c1d7e770e123adfa992d013fa294693d077cbc78alanv setSelection(position); 2182c1d7e770e123adfa992d013fa294693d077cbc78alanv return true; 2183c1d7e770e123adfa992d013fa294693d077cbc78alanv case AccessibilityNodeInfo.ACTION_CLICK: 2184c1d7e770e123adfa992d013fa294693d077cbc78alanv if (!super.performAccessibilityAction(host, action, arguments)) { 2185c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2186c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2187c1d7e770e123adfa992d013fa294693d077cbc78alanv return true; 2188c1d7e770e123adfa992d013fa294693d077cbc78alanv case AccessibilityNodeInfo.ACTION_LONG_CLICK: 2189c1d7e770e123adfa992d013fa294693d077cbc78alanv if (!super.performAccessibilityAction(host, action, arguments)) { 2190c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2191c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2192c1d7e770e123adfa992d013fa294693d077cbc78alanv return true; 2193c1d7e770e123adfa992d013fa294693d077cbc78alanv case AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS: 2194c1d7e770e123adfa992d013fa294693d077cbc78alanv smoothScrollToPosition(position); 2195c1d7e770e123adfa992d013fa294693d077cbc78alanv break; 2196c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2197c1d7e770e123adfa992d013fa294693d077cbc78alanv 2198c1d7e770e123adfa992d013fa294693d077cbc78alanv return super.performAccessibilityAction(host, action, arguments); 2199c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2200c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2201c1d7e770e123adfa992d013fa294693d077cbc78alanv 2202079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2203079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2204079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2205079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2206079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2209e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2210e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2211e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2218a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2219079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2220079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 226120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 226220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 226320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 226420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 226520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 226620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 226720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 226820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 226920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 227020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 227120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 227220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 227320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 227420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 227520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 227620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 227720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 227820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 227920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 228020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 228120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 228220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 228320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 228420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 228520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2291d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2324079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2368079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2386df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2387df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2388df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2389df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2393079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2397ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2398ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2399ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2400ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2407df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2408df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2428079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2429079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2430079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2431079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2432079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2433079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2434079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2435079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2436079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2437079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2441079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24740a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2484e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2485e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2486e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2487e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2488e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2489e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 24940e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 24950e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 24960e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 249982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 250082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 250182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 25026a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 25036a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 25046a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 25056a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 25066a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 250782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2508b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25151f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 25161f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 25171f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 251821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 251921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 252021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 25220e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 25230e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 25249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 25250e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 252782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 252882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 252982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 253082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 253182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 25321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 25331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 25341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 25351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 25361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 25371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 25381cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 25391cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 25401cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 25411cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2542d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2543d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2544d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2545d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2546d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2547d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 25484032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2549d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2550d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2551d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2552d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2553d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2554d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2555d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2556d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2557d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2558d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2559d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2560d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2561d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2562d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2563b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2574670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2575670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2576670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2577670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2578670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 25794032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 25804032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 25814032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2582458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2583458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 25840fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2586458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2587458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2588670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 259797566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 26430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26520a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2661005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2662005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2663005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2664005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2665005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 26667890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 26677890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 26687890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 26697890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 26707890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 26717890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 26850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27228350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2724f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2725f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 27261e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 27271e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2728f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 27291e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2730f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2731f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2732f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2734f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2754fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2755fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2756fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2757fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2758fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2759fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2760fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2761fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2762fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2763fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2764fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2765fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2766fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2767fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2768fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2793df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2794df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2795df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2796df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2797df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2802dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2803dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2804dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2805df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2806dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2808dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 281045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 281145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 281245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 281345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2817dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2884079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2885079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 2886e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 291978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 292278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2924637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 292778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 292878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 292978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 293078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 293178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 293278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 293378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 294913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 295013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 295113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 295213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 295378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 296078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 296178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 296278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 296378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 296478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 296578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 296678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 296778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 296878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 296978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 297078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 297378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 297478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 297578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 297678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 297878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 297978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 298078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 298178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 298278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 298378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 298478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 298578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 298678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 298778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 298878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 298978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 299078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 299178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 299278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 299378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 299478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 299578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 299678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 299778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 299978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 300078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 300178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 300278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 300378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 300478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 300578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 300678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 300778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 300878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 300978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 301078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 301178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 301278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 301378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 301478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 301578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 301678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 301778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 301878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 301978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 302078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 302178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 302278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 302378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 302478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 302578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 302678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 302778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 302878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 302978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 303078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 303178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 303278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 303378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 303478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 303578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 303678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 303778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 303878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 303978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 304078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 304178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3042a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 304378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 304478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 304578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 304678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 304778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3048a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 304978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 305378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 305578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 305778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 305878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 305978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 306078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 306178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 306278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 306378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 306478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 306578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 306678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 306778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 306878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 306978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 307078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 307178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 307278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 307378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 307478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 307578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 307678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 307778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 307878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 307978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 308078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 308178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 308278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 308378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 308478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 308578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3086a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 308778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 308878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 308978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 309078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 309178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3092a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 309378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 309478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 309578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 309678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 309778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 309878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 30999d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 31009d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 31019d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 310278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 31049d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 31059d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 310678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 310778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 310878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 310978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 311078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 311178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 311278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 311378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 311478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 311578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 311678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 311778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 311878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 311978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 312078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 312178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 312278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 312378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31361e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31434032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 31444032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 31454032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 31490fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3159dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3160dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3161dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3162dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3163dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3164dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 31651fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 31661fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 31671fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 31681fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31730a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 317582f3495b146b267f3786997752cef25310176349Romain Guy 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 318013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 3185637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3186637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3187637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 31884032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 31894032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 31904032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3192044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 3193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 3194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3196044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 3197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 3201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 3203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 3204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 3205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 3206637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 3207637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 32080a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 32090a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 32100a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 3211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 3213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 3214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 3215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 3219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 3220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 3221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 3224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 3225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32269d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 322779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 32289d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 3230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 3231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 3232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 3233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3234637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3235637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3236637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3238637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3241fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 3242fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 3243fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 3244fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 3245fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3246fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 32512585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 32522585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 32532585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 32542585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 32552585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 32564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 32576f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 32586f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell if (mDataChanged) { 32596f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // Re-sync everything if data has been changed 32606f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // since the scroll operation can query the adapter. 32616f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell layoutChildren(); 32626f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 32636f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 327078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown startScrollIfNeeded(y); 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 3273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 327478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 3275637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 32819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3287498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3288498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3289498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3290498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3291498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 32949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 33119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3313005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3314005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3318079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 33219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 33236198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3326d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3327d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3328d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3329d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3330d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3332079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 33339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 33349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 33359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3336d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3339d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3340d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3341d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3342005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3343005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3344079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3347005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3348d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3352079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 33556198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 33566198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3357637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3358637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3359637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3360637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3361637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 33626198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3363637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 33646198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 33656198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 33666198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 33676198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 33686198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 337021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 337121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3372637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3373637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3374637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3375637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3376637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3377637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3378637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3380637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 33816198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 33826198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 33836198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 33846198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 33854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33866198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3387f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3388f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3389f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3390d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3391d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3392d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 33934032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 33944032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 33954032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 33966198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 34009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 34019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 340279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3403637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3404637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3405637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3406637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3407637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3408637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3409637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3410637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3411637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3412637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3413637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3414637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3415637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3416637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3417637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3418637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3419637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 34230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3424637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3425637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3426637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3427637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3428637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 34310a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 343713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 34384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34471cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 34481cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 34491cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 34501cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 34511cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3456637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3457637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3472637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3473637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3474637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3475637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3476637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3477637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3478637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 348213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 34904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 34914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 34944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 34954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 34964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 34974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 34984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 34994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 35004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 35014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 35024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 35034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 35054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35079bc30d31322848d61f518c1db43544988faaba8fAdam Powell 35089bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 35099bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 35109bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 35119bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 35129bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 35139bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 35149bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 35159bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 35169bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 35179bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 35189bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 35199bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 35209bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 35219bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 35229bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 35239bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 35249bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 35259bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 35269bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 35279bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35340a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 35350a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 35360a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 35370a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 35380a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 35390a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 35400a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3541637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3542637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3543637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3544637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 354533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 354633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 354733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 354833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 354933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 355033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 355133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 355233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3553275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 355433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 355533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 355633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 355733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 355833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 355933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 356033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 356133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 356233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 356333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 356433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3567637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3568637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3570637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 357107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 357207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 357307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3574637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 35759d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 35769d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3577a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 35799d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3580a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 358607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 358707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 358807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 35919d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 35929d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 35939d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3594e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3595a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 35979d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3598a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3599a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 361807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 361907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 362007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 362107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 362207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 362307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 362407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 362507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 362613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 362713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 362813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 362913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 363013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 363113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 363213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 363313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 363413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 363513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 363613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 363713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 363813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 363913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 364013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 364113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 364213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 364313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 364413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 364513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 364613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 364713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 364813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 364913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 365013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 365113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 365213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 365313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 365413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 36590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36601fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 36611fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 36621fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 36631fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 367379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3674637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3675637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3676637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3677637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 36804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 36814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 36824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 368479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 369613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 369713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 369879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 36994b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 37004b4f40f84e72579417604143e5f42115769649b8Romain Guy } 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 37072585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 37082585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 37092585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 37102585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 37112585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 37124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 371313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 371413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 371578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 372313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 37264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 372713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37314e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 37334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 37344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 37354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37404e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 37424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 37434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 37444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 37454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 37464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 37474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 37484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 37494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 37504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 37514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3752637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 37534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 37544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 37554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 37679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 37900046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3805637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3812d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3813d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3814d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3815d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3817d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3818d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3819d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3820d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3821d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3822d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3823d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3824b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 3825b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 3826d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3827d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3828d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3829d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3830d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3831b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3832d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3833d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3834d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3835d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3836d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3837d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 383879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 384279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 38439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 38449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 38450b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 38489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 38491fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38571cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 38581cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 38591cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 38601cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 38619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3862458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 38671fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3870e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 38750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 3876044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 3877044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 3878637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 38801fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3883637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3885637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3887637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3888637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3889637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3890637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3891637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3892637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3893637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3894637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38954032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 38964032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 38974032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 38984032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 38994032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3900637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3901637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39021fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 39050b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 3906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 39080b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 3909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 39111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3913458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3914d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3916458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 391779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3918d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 391921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 392021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 392121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3922d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 39235e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 39245e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 39255e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 39265e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 39275e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3928d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3929d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3930d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3931d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 393579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 393679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3937d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39394e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3940d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3941d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3942d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3943d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3944d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3945637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 39467f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 39477f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 39487f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 39497f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 395079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 395179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 395279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 395379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3959637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3963637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3964637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3965637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3966637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3967637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3968637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3970637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3971637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3972637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3973637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3974637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3975637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3978637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3979d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3980637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3981637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3982637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3983d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3984637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3985637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3986637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3987637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3988637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3989637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3990637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3991637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 39929d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 39939d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 3994637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3996637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3997637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3998637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3999637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4000637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40013cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 40023cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 40033cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4004637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4006637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4007637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 40089d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4009637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 40101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4011637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4012637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4013637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4014637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4015637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4016637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4017637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4018637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4019d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4020637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4022637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4023637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4026637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4028637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4029637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4030637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4031637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4033044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4034044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4037044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4038044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4039044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4040044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4041044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4042044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4043044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4044044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4045044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4046044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4047044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4048044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4049637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40511fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4052637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4053637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4062458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4063e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 40644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4069e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 40704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 407652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4077e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4078e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 40794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4082458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4084e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 40854032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 40864032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4087e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4088e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4089e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4090e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (mDataChanged) { 4091e69370e16852c576890dd70733ad40669fd9367eAdam Powell // But we might have something in a minute. 4092e69370e16852c576890dd70733ad40669fd9367eAdam Powell post(new Runnable() { 4093e69370e16852c576890dd70733ad40669fd9367eAdam Powell @Override public void run() { 4094e69370e16852c576890dd70733ad40669fd9367eAdam Powell start(position); 4095e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4096e69370e16852c576890dd70733ad40669fd9367eAdam Powell }); 4097e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4098e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4099e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4100e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4102e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 41034e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41044bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4105e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (position < firstPos) { 4106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 4107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4108e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (position > lastPos) { 4109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 4110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4112e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollToVisible(position, INVALID_POSITION, SCROLL_DURATION); 4113458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4114458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4116458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4119458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 41244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41251fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4128e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 41294032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 41304032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4131458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4132458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4133458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4136e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4137e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4138e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4139e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (mDataChanged) { 4140e69370e16852c576890dd70733ad40669fd9367eAdam Powell // But we might have something in a minute. 4141e69370e16852c576890dd70733ad40669fd9367eAdam Powell post(new Runnable() { 4142e69370e16852c576890dd70733ad40669fd9367eAdam Powell @Override public void run() { 4143e69370e16852c576890dd70733ad40669fd9367eAdam Powell start(position, boundPosition); 4144e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4145e69370e16852c576890dd70733ad40669fd9367eAdam Powell }); 4146e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4147e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4148e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4149e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4151e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 41524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41534bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4154e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (position < firstPos) { 4155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4158458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 4162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4165458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4170e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (position > lastPos) { 4171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4173458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4174458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4175458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4177458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 4178458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4179458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4180458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4182458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4183458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4184458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4185458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4186458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4187e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollToVisible(position, boundPosition, SCROLL_DURATION); 4188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4191458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4194458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 41994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42001fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4201458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4202e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4203e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4204322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4205322171b333a1c796fcc1428a96ea1d854a3881faErik } 4206322171b333a1c796fcc1428a96ea1d854a3881faErik 4207322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 42084032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42094032252c997be9f5d013054dc23ace855007b3a5Adam Powell 42101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 42111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4212e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 4213e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4214e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4215e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4216e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4217e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4218e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4219371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 4220371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4221e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 42224bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4223e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 4224e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 4225e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 4226e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 4227e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4228e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4229e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 42300b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4231e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4232e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4233e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4234371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 42354ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 42360b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 42370b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4238371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4239234a5715309ea74757780aff6123e3144efb5b69Adam Powell 42401fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4241e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4242e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4243e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4244e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4245e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4246e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4247e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4248e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4249e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4250e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4251e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4252e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4253e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4254e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4255e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4256e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4257e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4258e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4259e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4260e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4261e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4262e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4263e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4264e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4265e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4266e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4267e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4268e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4269e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4270e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4271e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4272e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4273e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4274e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4275e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4276e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4277e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4278e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4279e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4280e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4281e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4282e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4283e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4284e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4285e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4286e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4287e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4288e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4289e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4290e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4291e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4292e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4293e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4294e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4295e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4296e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4297458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4300e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4301458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4302458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4303458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 43044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4305458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4306458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4307458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4308458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 43094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43100b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 43110b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 43120b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4313458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4314458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4315458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 43161fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4317458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4319458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4320458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4321458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 43241fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 43251fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43271fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 43280b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4330458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 43317e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 43321fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4333458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4338458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4339029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 43404e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4341029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4342029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4343458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4344458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4345458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4346458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4347458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4348458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 43491fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4350458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4351458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4352458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4353458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4355458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 43561fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 43577e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4358458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 43590b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4361458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43631fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4364458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 43654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 43660b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4368458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4372458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4373458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4374458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 43751fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4378458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4379458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 43800b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 43810b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 43820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4383458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 43841fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 43851fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4386458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43870b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4388458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43917e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 43921fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4394458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4395458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4397458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4398458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4399458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4400458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4401458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4403458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44060b8acd81d5029385ec0ae3cafd90acf3036b89acAdam 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 = Math.max(mListPadding.top, mExtraScroll); 4415458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 44167e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 44170b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 44181fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44201fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4421458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 44230b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4425458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4426458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4427458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4428458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4429e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4430234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4431234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 44320b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4433234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4434234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4435e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4436371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4437234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4438234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4439e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4440371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4441e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 44424032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4443e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 44444032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 44454032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 44464032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 44474032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 44484032252c997be9f5d013054dc23ace855007b3a5Adam Powell 44494032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 44504032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 44514032252c997be9f5d013054dc23ace855007b3a5Adam Powell 44524032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 44534032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 44540b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 44550b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 44560b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 44571fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4458e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 44590b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 44600b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 44610b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 44621fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4463e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4464e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4465e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4466234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 44670b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 44680b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 44690b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4470e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4471e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4472e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4473e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4474458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4475458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4476458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4477458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4478458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4480458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 44814bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 44824bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 44834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 44844bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 44854bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 44864bede9e425875542976a422222510fa4056a8339Romain Guy */ 44874bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 44884bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 44894bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 44904bede9e425875542976a422222510fa4056a8339Romain Guy } 44914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 44924bede9e425875542976a422222510fa4056a8339Romain Guy } 449321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 449421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 449521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 449621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 44974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 449821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 449921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 450021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 450121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 450221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 45034e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 45044bede9e425875542976a422222510fa4056a8339Romain Guy /** 4505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4508458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4510458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4511458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4513458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4515322171b333a1c796fcc1428a96ea1d854a3881faErik 4516322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4517322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4518322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4519322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4520322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4521322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4522322171b333a1c796fcc1428a96ea1d854a3881faErik * 4523322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4524322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4525322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4526322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4527322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4528322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4529322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4530322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4531322171b333a1c796fcc1428a96ea1d854a3881faErik } 4532322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4533322171b333a1c796fcc1428a96ea1d854a3881faErik } 4534322171b333a1c796fcc1428a96ea1d854a3881faErik 4535458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4536e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4537e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4538e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4539e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4540e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4541e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4542e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4543e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4544e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4545e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4546e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4547e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4548e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4549e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4550e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4551e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4552e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4553e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4554458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4555458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 45574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4558458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4559458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4561458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4562458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4563458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4564458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4566458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4567458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4569458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4570458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4571458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4572458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 45750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 45760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 45770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 45780b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4580458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45824032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4583299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 45844032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 45854032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 45864032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 45874032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 45884032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 45894032252c997be9f5d013054dc23ace855007b3a5Adam Powell 459079303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 45914032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 45924032252c997be9f5d013054dc23ace855007b3a5Adam Powell (lastPos == mItemCount - 1 && 45934032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 45944032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 45954032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 45964032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 45974032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 45984032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 45990046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 46000b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4601299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4602458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4604499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4605499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4606499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4607499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4608499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4609499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4610499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4611499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4612499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4613499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4614499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4615499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4616499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4617499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4618499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4619499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4620499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4621499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4622499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4623499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4624499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4625499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4626499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4627499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4628499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4629499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4630499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4631499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4632499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4633499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4634499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4635499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4636499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4637499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4638499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4639499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 46419d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 46429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 46440211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 46459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 46499d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 46509d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 46519d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 46529d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 46539d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 46549d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 46559d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 46569d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 46579d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 46589d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 46599d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 46609d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 46619d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 46626dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 46636dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 46649d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 46659d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 46669d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 46759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4678458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 46829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 46859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 46869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 46889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4689bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4690bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4691bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4692bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4693bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4694bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4695bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4696bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4697bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4698bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4700bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4701bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4719637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4720637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4721bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4722637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4723637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4724637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4725637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4726bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4728637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4729637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4730637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 47310a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 47320a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 47330a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 47340a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47360a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4740458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4742029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4743029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4744029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4745029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4747458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4748458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 47499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4750458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4751458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4753458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 47548c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 47558c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 47568c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 47578c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4759458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4760458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4766079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4770458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4771458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 47778c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 47788c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 47798c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 47808c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4781458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4782458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4783458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4784458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4790079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4792458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4793458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4794458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4795458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4800458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4801458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4802458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4804458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4806458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4808539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 4809458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4810539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 48119d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 48129d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 48139d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 48141fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 48159d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48169d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 4817458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4819458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4820458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4821458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4823458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4824458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4825458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4827458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4828029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 48292a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 48302a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4831079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4832079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4833079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4834079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4835079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4836079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 48372a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4838079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4839079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4840029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4841029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 48454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4846458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 48579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4881ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4882ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4883ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 49124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4917637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4918637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4920637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4922637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4923637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4924637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4926637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4927637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4928637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49414e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 49424e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 49438d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 49448d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 49454e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 49468d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 4947becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 4948becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 4949becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 49504e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 49518d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 49524e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 49869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 50239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 50299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 50349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 50484032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 50494032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 50504032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 50573c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 506814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 506914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 507014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 507114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 507214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 507314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 507414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 507514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 507614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 507714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 507814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 507914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 508014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 508114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 508214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 508314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 508414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 508514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 508614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 508714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 508814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 508914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 509014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 509114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 509214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 509314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 509414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 509514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 509614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 509714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 509814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 509914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 510014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 510114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 510214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 510314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 510414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 510514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 510614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 510714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 510814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 510914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 511014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 511114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 511214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5116ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5117ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 511914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 512014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 512114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5123539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5124539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5125539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 512614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 512714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51350785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5138da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5139da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5140da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5141da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5142da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5143da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 51440785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5145ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 51460785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 51470785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5148ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5149ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 51500785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 51510785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 51520785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 51530785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 51540785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 51550785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 51560785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5249079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 525343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 525443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 525543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 525643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 525743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 525843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 525943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 526043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 526143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 526243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 526343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 526443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 526543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 526643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 526743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 526824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 526943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 527043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5274d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 52864df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5287b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5293b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 529724443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5300b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 53219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53464e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 53474e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 53484e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 53494e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 53504e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 53514e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 53524e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 53554e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 53564e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5377b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 539383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 53948d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 53958d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5396b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5397b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5398b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5399b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 540083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 540183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 540283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 540383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 540483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 540583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5411cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5415b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5420105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5442b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5443b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5444b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5445b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5446c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5447c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5448c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5449c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5450c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 54511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 54521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 54531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 54541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 54551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 54561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 54571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 54581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 54591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 54601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 54611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 54621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 54631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 54641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 54651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 54661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 54671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 54681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 54691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 54701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 54711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 54721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 54731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 54741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 54751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 54761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 54771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 54781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 54791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 54801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 54811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5482c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 54831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 54841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 54851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 54861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 54871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 54881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 54891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 54901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5491c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5492c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5493b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 54940a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5495b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5496b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5497b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5498b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5499b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5500b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5501b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5502b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 55030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5504b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 55109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 55134df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 55144df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5517b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5518b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5519b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5520b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5521b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5522105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5533d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 556524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 557043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 55791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 55861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 55871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5590c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 55991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 56171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 56209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5630aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5631aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5632aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5633aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5634aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5635aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 56579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 56689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 56699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 56719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 56779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 56815be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 56825be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 56835be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 56845be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 56855be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 56869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 569052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 569152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 569252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 569352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 569452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 569552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 569652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 569752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57067b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 57089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 57139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 57149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 57159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 57179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 57239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 572513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 5729c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 57379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 574113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 574213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 574313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 574413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 574513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 574613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 574713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 574813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 574913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 575013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 575113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 575213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 575313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 575413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 575513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 575652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 575713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 575813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 575913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 576013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 576113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 576213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 576313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 576413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 576513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 576613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 576713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 576813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 576913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 577013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 577113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 577213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 577313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 577413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 577513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 577613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 577713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 577813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 577913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 578013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 578113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 578213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 578313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 578452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 578513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 578613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 578713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 578813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 578952964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 579013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 579113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 579213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 579313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 579413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 579513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 579613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5799637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5800637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5801637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 580413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5805499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5806499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5807499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5808499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5809499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 58109b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 58119b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 58123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 58133ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 58143ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 58153ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 58163ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 58173ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 58183ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 58199b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 58202148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 58219b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5822499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5823499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5824499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5825499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 58262148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 58272148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 58282148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 58292148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 58302148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 58312148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 58322148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 58332148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5834499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5835499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 583616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5837499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5838499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 58392148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 58402148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 58412148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 58422148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 584316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5844fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5845fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 584616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5847499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 584816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5849499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5850499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5851499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5852499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5853499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5854499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5855fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5856fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5857fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5858fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5859fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5860499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5861499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5862499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5863b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 5864b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 5865b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 5866b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 5867b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 5868b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 5869b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5870b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5871b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 5872b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 58769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 58789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 58799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 58819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 58829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 58849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 58859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5887b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5888b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5889b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5890b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5891b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5892b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5893b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5894b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5895b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5896b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5897b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5898b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5899b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5900b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5901b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5902b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5903b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5904b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 59759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 59769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 59789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 59809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 59819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5982bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 59839bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 59849bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 59859bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 59869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 59879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59884df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 59894df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 59904df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 59914df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 59924df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 59934df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5994bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 59954df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 59964df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 59970bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 59980bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 59990bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 60000bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 60010bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 60020bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 60030bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 60040bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6005bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 60060bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 60070bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6008079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6009079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6010079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6011079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6012079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6013079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6014079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6015539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6016539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6017539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6018539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6019539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 60209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 60219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 60229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 60259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 60269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 60299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 60309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 60319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 60349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 60359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 60409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 60419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 60429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 60449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 60459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 60479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 60499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 60509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 60519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 60539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 60559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 60599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 60609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 60619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 60629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 60639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 60659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 60669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 60689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 60699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 60729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 60749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 60779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 60789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 60799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 60809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 60829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 60859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 60879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 60899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 60919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6092539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6093539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6094539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6095539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 60969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 60979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 60989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 60999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 61039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 61049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 61069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 61079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 61089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6110f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6111f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6112f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6113f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6114f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6115f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6116f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6117f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6118f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6119f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6120f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6121f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6122f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6123f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6124f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6125f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6126f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6127539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6128539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6129539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6130539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6131539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6132539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6133f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 61340a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 61359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 61369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 61379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 61419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 61439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 61449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 61459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 61469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 61479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 61489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 61509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 61519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 61529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 61539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 61549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 61559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 61569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6159539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6160539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6161539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 61629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 61669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 61689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 61699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 61709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 61729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 61739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 61749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 61769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 61789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 61799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 61809c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 61819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 61829c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 61839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 61849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 61854df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 61869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 61929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 61939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 61959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 61969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 61989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 61999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 62009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 62019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 62029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 62039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 62049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 62069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6208539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6209539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6210539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6211539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6212539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int index = mTransientStateViews.indexOfKey(position); 6213539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (index < 0) { 6214539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6215539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6216539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final View result = mTransientStateViews.valueAt(index); 6217539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.removeAt(index); 6218539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return result; 6219539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6220539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6221539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6222539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6223539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6224539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6225539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6226539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6227539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6228539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6229539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 62329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 62349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6235079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 62369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 62379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 62389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6239079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 62409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 62439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6246539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 62479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 62499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6250079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 62519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 62529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 62539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 62549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6256539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6257539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 62599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 62609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6261539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6262539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6263539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || scrapHasTransientState) { 6264539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6265539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6266539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6267539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6268539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6269539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6270539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6271539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6272539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6273539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(position, scrap); 62749b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 62759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 62769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6278539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 62799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 62809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 62819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 62829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 62839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6285c1d7e770e123adfa992d013fa294693d077cbc78alanv scrap.setAccessibilityDelegate(null); 62869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 62879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 62889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6292539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6293539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6294539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6295539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6296539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6297539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6298539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6299539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6300539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6301539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6302539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6303539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6304539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6305539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 63069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 63079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 63099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 63109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 63119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 63129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 63149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6315a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 63169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 63179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6318079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6319079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6320079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 63219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 63239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6324539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6325539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 63269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6327539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || 6328539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 63299b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 63309b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6331539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6332539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6333539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6334539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6335539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(mFirstActivePosition + i, victim); 6336539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 63379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 63389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 63419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 63429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6343a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6344079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 63459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 63469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6347c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 63489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 63499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 63509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 63539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 63549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 63559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 63569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 63619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 63659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 63669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 63689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 63699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 63709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 63719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 63729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 63739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 63749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 63759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 63769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 63779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 63789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6380bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6381bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6382bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6383bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6384bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6385bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6386bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6387bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6388bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6389bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 63909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 63949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 63969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 63979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 63989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 64009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 64019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 64029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 64039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 64049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 640752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 640852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 640952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 641052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 641152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 641252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 641352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 641452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 641552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 641652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 641752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 641852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 641952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 642052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 642152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 642252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 642352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 642452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 642552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6426266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 642752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 642852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 642952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 643052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 643152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 643252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 643352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 643452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 643552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 643652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 643752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 643852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 643952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 64409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6441079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6442079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6443079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6444079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6445079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6446079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6447079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6448079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6449079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6450079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6451079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6452079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6453079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6454079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6455079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6456079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6457079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6458079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 64599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6460