AbsListView.java revision a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0f
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()); 1358a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1359a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 1360a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1361a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1362a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 1363a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1364a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1365a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1366a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1367a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 1368a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1369a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1370a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1371a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1372a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1373a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1374a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1375a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1376a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1377a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov if (mFirstPosition > 0) { 1378a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1379a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1380a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1381a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1382a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1383a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1384a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return super.performAccessibilityAction(action, arguments); 13858a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13868a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 14516bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1507a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 15082614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1509f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 151014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1530a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 15312614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1532f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 153343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 153443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 153514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 153643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 153743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 153843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 153943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 154014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1541f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1553a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 15542614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1555f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 155643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 155743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 155843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 155943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 156043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 156114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1573f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1574f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1593f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 160399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16147becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 16157becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 16167becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 16177becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 16187becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 16197becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 16207becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 16217becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 16227becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 16237becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 162699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 162799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 162899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 162999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 163099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 163199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1650a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1651a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 16529a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 16539a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 16549a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16559a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 165614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 16579a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 16589a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 16599a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 16609a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16619a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 16629a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16632614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1664f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1687079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1697f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1698f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1699f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1700f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1701f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1702f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1703f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1704f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 17052614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 17062614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1707a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1708a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1709a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1710a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1711a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1716d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1717d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 17230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1763b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1764b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1765b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1766b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1767b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1768b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1769b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1794079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18380b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 18390b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 18590b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 18600b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 18610b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 18660b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 18670b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 18680b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 18690b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1918da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1919da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1920da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1921da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1922ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 1923da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1924da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1925ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 1926da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1927da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1930d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1931d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1932d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1933d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1938f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1939f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1940f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1941f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1942f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1943f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1944f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 19452c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 19462c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 19472c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 19482c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1949f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1952637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1953637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1963d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1964d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1965d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1966d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1967d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1968d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1969d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1970d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1976d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1977d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1978d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 208121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 208221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 20834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 208621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 208721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2090539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2091539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2092539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2093539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2094539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21064213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21074213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21084213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21094213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2116079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 212421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2125a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2126a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 21304213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21314213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21324213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21334213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21344213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2144aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2145aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2146aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2147aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2148aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2149aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2150aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2151aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2152aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2153aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2154aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2155aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2156aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2157aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2158c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2159c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2160c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2161c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2162c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2163c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2164c1d7e770e123adfa992d013fa294693d077cbc78alanv 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2168c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2169c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2170c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2171c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2172c1d7e770e123adfa992d013fa294693d077cbc78alanv 2173c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 2174c1d7e770e123adfa992d013fa294693d077cbc78alanv 2175c1d7e770e123adfa992d013fa294693d077cbc78alanv if (position == INVALID_POSITION) { 2176c1d7e770e123adfa992d013fa294693d077cbc78alanv return; 2177c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2178c1d7e770e123adfa992d013fa294693d077cbc78alanv 2179c1d7e770e123adfa992d013fa294693d077cbc78alanv if (isClickable()) { 2180c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 2181c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setClickable(true); 2182c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2183c1d7e770e123adfa992d013fa294693d077cbc78alanv 2184c1d7e770e123adfa992d013fa294693d077cbc78alanv if (isLongClickable()) { 2185c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 2186c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setLongClickable(true); 2187c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2188c1d7e770e123adfa992d013fa294693d077cbc78alanv 2189c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 2190c1d7e770e123adfa992d013fa294693d077cbc78alanv 2191c1d7e770e123adfa992d013fa294693d077cbc78alanv if (position == getSelectedItemPosition()) { 2192c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setSelected(true); 2193c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2194c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2195c1d7e770e123adfa992d013fa294693d077cbc78alanv 2196c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2197c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2198c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 2199c1d7e770e123adfa992d013fa294693d077cbc78alanv 2200c1d7e770e123adfa992d013fa294693d077cbc78alanv if (position == INVALID_POSITION) { 2201c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2202c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2203c1d7e770e123adfa992d013fa294693d077cbc78alanv 2204c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2205c1d7e770e123adfa992d013fa294693d077cbc78alanv 2206c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 2207c1d7e770e123adfa992d013fa294693d077cbc78alanv case AccessibilityNodeInfo.ACTION_SELECT: 2208c1d7e770e123adfa992d013fa294693d077cbc78alanv setSelection(position); 2209c1d7e770e123adfa992d013fa294693d077cbc78alanv return true; 2210c1d7e770e123adfa992d013fa294693d077cbc78alanv case AccessibilityNodeInfo.ACTION_CLICK: 2211c1d7e770e123adfa992d013fa294693d077cbc78alanv if (!super.performAccessibilityAction(host, action, arguments)) { 2212c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2213c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2214c1d7e770e123adfa992d013fa294693d077cbc78alanv return true; 2215c1d7e770e123adfa992d013fa294693d077cbc78alanv case AccessibilityNodeInfo.ACTION_LONG_CLICK: 2216c1d7e770e123adfa992d013fa294693d077cbc78alanv if (!super.performAccessibilityAction(host, action, arguments)) { 2217c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2218c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2219c1d7e770e123adfa992d013fa294693d077cbc78alanv return true; 2220c1d7e770e123adfa992d013fa294693d077cbc78alanv case AccessibilityNodeInfo.ACTION_ACCESSIBILITY_FOCUS: 2221c1d7e770e123adfa992d013fa294693d077cbc78alanv smoothScrollToPosition(position); 2222c1d7e770e123adfa992d013fa294693d077cbc78alanv break; 2223c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2224c1d7e770e123adfa992d013fa294693d077cbc78alanv 2225c1d7e770e123adfa992d013fa294693d077cbc78alanv return super.performAccessibilityAction(host, action, arguments); 2226c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2227c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2228c1d7e770e123adfa992d013fa294693d077cbc78alanv 2229079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2230079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2231079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2232079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2233079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2236e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2237e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2238e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2245a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2246079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2247079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 228820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 228920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 229020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 229120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 229220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 229320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 229420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 229520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 229620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 229720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 229820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 229920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 230020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 230120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 230220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 230320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 230420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 230520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 230620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 230720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 230820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 230920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 231020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 231120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 231220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2318d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2351079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2395079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2413df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2414df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2415df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2416df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2420079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2424ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2425ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2426ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2427ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2434df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2435df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2455079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2456079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2457079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2458079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2459079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2460079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2461079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2462079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2463079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2464079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2468079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2511e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2512e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2513e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2514e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2515e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2516e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 25210e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 25220e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 25230e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 252682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 252782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 252882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 25296a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 25306a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 25316a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 25326a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 25336a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 253482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2535b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25421f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 25431f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 25441f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 254521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 254621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 254721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 25490e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 25500e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 25519d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 25520e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 255482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 255582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 255682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 255782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 255882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 25591cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 25601cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 25611cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 25621cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 25631cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 25641cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 25651cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 25661cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 25671cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 25681cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2569d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2570d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2571d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2572d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2573d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2574d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 25754032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2576d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2577d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2578d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2579d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2580d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2581d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2582d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2583d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2584d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2585d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2586d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2587d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2588d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2589d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2590b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2601670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2602670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2603670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2604670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2605670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 26064032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 26074032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 26084032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2609458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2610458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 26110fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2613458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2614458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2615670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 262497566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 26700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26740a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26790a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2688005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2689005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2690005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2691005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2692005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 26937890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 26947890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 26957890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 26967890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 26977890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 26987890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 27120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27250a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27498350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2751f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2752f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 27531e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 27541e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2755f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 27561e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2757f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2758f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2759f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2761f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2781fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2782fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2783fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2784fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2785fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2786fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2787fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2788fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2789fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2790fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2791fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2792fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2793fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2794fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2795fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2820df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2821df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2822df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2823df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2824df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2829dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2830dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2831dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2832df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2833dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2835dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 283745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 283845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 283945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 284045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2844dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2911079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2912079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 2913e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29390a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 294678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 294978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2951637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2952637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 295478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 295578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 295678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 295778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 295878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 295978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 296078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 297613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 297713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 297813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 297913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 298078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 298778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 298878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 298978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 299078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 299178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 299278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 299378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 299478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 299578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 299678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 299778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 300078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 300178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 300278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 300378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 300478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 300578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 300678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 300778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 300878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 300978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 301078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 301178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 301278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 301378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 301478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 301578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 301678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 301778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 301878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 301978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 302078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 302178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 302278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 302378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 302478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 302578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 302678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 302778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 302878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 302978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 303078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 303178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 303278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 303378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 303478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 303578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 303678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 303778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 303878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 303978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 304078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 304178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 304278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 304378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 304478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 304578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 304678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 304778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 304878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 304978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 305078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 305178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 305278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 305378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 305478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 305578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 305878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 305978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 306078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 306178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 306278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 306378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 306478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 306578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 306678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 306778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 306878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3069a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 307078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 307178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 307278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 307378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 307478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3075a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 307678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 307778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 307878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 307978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 308078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 308178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 308278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 308378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 308478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 308578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 308678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 308778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 308878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 308978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 309078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 309178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 309278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 309378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 309478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 309578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 309678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 309778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 309878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 309978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 310178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 310278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 310378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 310478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 310578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 310678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 310778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 310878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 310978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 311078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 311178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 311278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3113a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 311478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 311578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 311678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 311778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 311878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3119a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 312078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 312178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 312278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 312378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 312478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 312578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 31269d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 31279d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 31289d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 312978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 31319d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 31329d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 313378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 313478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 313578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 313678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 313778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 313878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 313978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 314078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 314178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 314278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 314378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 314478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 314578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 314678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 314778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 314878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 314978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 31519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 31539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31631e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31704032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 31714032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 31724032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 31760fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3177637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3178637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3180637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3186dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3187dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3188dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3189dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3190dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3191dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 31921fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 31931fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 31941fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 31951fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 320282f3495b146b267f3786997752cef25310176349Romain Guy 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 320713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 3212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 32154032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 32164032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 32174032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3219044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 3220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 3221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3223044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 3224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3227637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 3228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 3230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 3231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 3232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 3233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 3234637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 32350a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 32360a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 32370a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 3238637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 3240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 3241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 3242637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3245637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 3246637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 3247637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 3248637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3249637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3250637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 3251637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 3252637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32539d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 325479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 32559d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3256637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 3257637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 3258637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 3259637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 3260637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3261637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3262637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3263637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3265637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3266637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3268fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 3269fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 3270fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 3271fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 3272fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3273fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 32782585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 32792585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 32802585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 32812585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 32822585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 32834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 32846f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 32856f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell if (mDataChanged) { 32866f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // Re-sync everything if data has been changed 32876f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // since the scroll operation can query the adapter. 32886f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell layoutChildren(); 32896f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 32906f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 32949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 32959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 329778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown startScrollIfNeeded(y); 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 3300637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 330178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 3302637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 33119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3314498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3315498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3316498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3317498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3318498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 33219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 33259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 33289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 33299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 33309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 33329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 33349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 33359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3340005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3341005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3345079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 33506198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3353d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3354d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3355d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3356d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3357d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3359079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3363d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3366d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3367d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3368d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3369005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3370005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3371079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3374005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3375d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3379079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 33826198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 33836198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3384637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3385637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3388637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 33896198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3390637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 33916198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 33926198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 33936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 33946198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 33956198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3396637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 339721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 339821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3400637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3402637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3403637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3404637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3405637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3406637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3407637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 34086198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 34096198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 34106198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 34116198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 34124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34136198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3414f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3415f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3416f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3417d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3418d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3419d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 34204032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 34214032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 34224032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 34236198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 34279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 342979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3430637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3431637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3432637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3433637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3434637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3435637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3436637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3437637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3438637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3439637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3440637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3441637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3442637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3443637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3444637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3445637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3446637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 34500a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3451637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3452637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3453637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3454637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3455637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 34580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 346413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 34654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34741cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 34751cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 34761cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 34771cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 34781cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3489637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3491637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3492637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3493637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3495637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3496637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3497637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3498637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3508637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 350913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3512637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3513637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3514637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3515637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 35174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 35184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 35214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 35224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 35234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 35244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 35254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 35264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 35274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 35284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 35294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 35304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 35324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35349bc30d31322848d61f518c1db43544988faaba8fAdam Powell 35359bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 35369bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 35379bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 35389bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 35399bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 35409bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 35419bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 35429bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 35439bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 35449bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 35459bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 35469bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 35479bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 35489bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 35499bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 35509bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 35519bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 35529bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 35539bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 35549bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35610a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 35620a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 35630a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 35640a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 35650a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 35660a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 35670a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3568637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3570637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3571637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 357233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 357333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 357433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 357533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 357633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 357733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 357833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 357933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3580275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 358133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 358233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 358333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 358433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 358533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 358633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 358733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 358833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 358933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 359033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 359133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 359807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 359907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 360007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 36029d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 36039d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3604a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 36069d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3607a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 361307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 361407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 361507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 36189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 36199d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 36209d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3621e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3622a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 36249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3625a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3626a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 364507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 364607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 364707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 364807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 364907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 365007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 365107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 365207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 365313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 365413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 365513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 365613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 365713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 365813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 365913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 366013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 366113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 366213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 366313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 366413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 366513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 366613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 366713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 366813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 366913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 367013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 367113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 367213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 367313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 367413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 367513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 367613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 367713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 367813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 367913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 368013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 368113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 36860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36871fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 36881fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 36891fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 36901fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 370079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3701637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3702637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3703637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3704637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37054e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 37074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 37084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 37094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 371179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 372313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 372413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 372579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 37264b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 37274b4f40f84e72579417604143e5f42115769649b8Romain Guy } 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 37342585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 37352585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 37362585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 37372585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 37382585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 37394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 374013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 374113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 374278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 375013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 37534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 375413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 37604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 37614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 37624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 37694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 37704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 37714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 37724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 37734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 37744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 37754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 37764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 37774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 37784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 37804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 37814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 37824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 38170046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3839d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3840d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3841d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3842d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3843637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3844d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3845d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3846d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3847d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3848d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3849d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3850d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3851b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 3852b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 3853d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3854d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3855d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3856d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3857d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3858b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3859d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3860d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3861d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3862d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3863d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3864d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 386579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 38679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 386979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 38719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 38720b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 38759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 38761fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 38829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38841cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 38851cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 38861cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 38871cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3890637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3891637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3892637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3893637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 38941fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3895637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3896637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3897e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3898637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3899637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3900637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3901637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 39020b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 3903044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 3904044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 3905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39071fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3910637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3913637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3915637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3917637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3918637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3920637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39224032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 39234032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 39244032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 39254032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 39264032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3927637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3928637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39291fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 39320b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 3933458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 39350b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 3936458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 39381fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3941d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 394479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3945d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 394621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 394721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 394821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3949d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 39505e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 39515e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 39525e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 39535e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 39545e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3955d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3956d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3957d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3958d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 396279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 396379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3964d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 39659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3967d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3968d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3969d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3970d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3971d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3972637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 39737f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 39747f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 39757f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 39767f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 397779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 397879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 397979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 398079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3982637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3983637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3984637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3986637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3987637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3988637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3990637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3991637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3992637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3993637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3994637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3997637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3998637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3999637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4000637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4001637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4002637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4004637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4006d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4007637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4008637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4009637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4010d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4011637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4012637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4013637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4014637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4015637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4016637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4017637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4018637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 40199d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 40209d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4022637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4023637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4024637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4025637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4026637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40283cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 40293cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 40303cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4031637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4033637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4034637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 40359d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 40371fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4038637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4039637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4040637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4041637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4042637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4043637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4044637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4045637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4046d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4047637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4048637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4049637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4053637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4060044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4061044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4063637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4064044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4065044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4066044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4067044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4068044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4069044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4070044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4071044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4072044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4073044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4074044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4075044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40781fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4080637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4081637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4082637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4089458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4090e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 40914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4092458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4096e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 40974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4099458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 410352964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4104e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4105e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 41064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4111e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 41124032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 41134032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4114aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4115aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4116aadf4fb68e640c0622a1070206f69a7724328632Adam Powell post(new Runnable() { 4117aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4118aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4119aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4120aadf4fb68e640c0622a1070206f69a7724328632Adam Powell }); 4121aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4122aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4123aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4124e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4125e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4126e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4127e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4128e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4129e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4131e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 41324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41334bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4134e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (position < firstPos) { 4135458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 4136458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4137e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (position > lastPos) { 4138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 4139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4141e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollToVisible(position, INVALID_POSITION, SCROLL_DURATION); 4142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4145458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4146458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4147458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4152458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 41534e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41541fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4157e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 41584032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 41594032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4165aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4166aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4167aadf4fb68e640c0622a1070206f69a7724328632Adam Powell post(new Runnable() { 4168aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4169aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4170aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4171aadf4fb68e640c0622a1070206f69a7724328632Adam Powell }); 4172aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4173aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4174aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4175e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4176e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4177e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4178e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4179e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4180e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4182e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 41834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41844bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4185e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (position < firstPos) { 4186458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 4193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4194458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4199458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4200458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4201e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (position > lastPos) { 4202458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4206458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4207458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4208458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 4209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4213458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4214458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4215458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4216458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4217458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4218e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollToVisible(position, boundPosition, SCROLL_DURATION); 4219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4220458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4222458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4224458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4225458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4226458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4227458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4228458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 42304e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42311fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4232458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4233e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4234e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4235322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4236322171b333a1c796fcc1428a96ea1d854a3881faErik } 4237322171b333a1c796fcc1428a96ea1d854a3881faErik 4238aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 42394032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42404032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4241aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4242aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4243aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4244aadf4fb68e640c0622a1070206f69a7724328632Adam Powell post(new Runnable() { 4245aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4246aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4247aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4248aadf4fb68e640c0622a1070206f69a7724328632Adam Powell }); 4249aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4250aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4251aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4252aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4253aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4254aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4255aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4256aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4257aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 42581fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 42591fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4260e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 4261e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4262e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4263e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4264e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4265e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4266e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4267371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4268e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 42694bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4270e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 4271e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 4272e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 4273e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 4274e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4275e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4276e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 42770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4278e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4279e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4280e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4281371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 42824ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 42830b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 42840b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4285371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4286234a5715309ea74757780aff6123e3144efb5b69Adam Powell 42871fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4288e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4289e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4290e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4291e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4292e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4293e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4294e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4295e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4296e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4297e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4298e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4299e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4300e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4301e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4302e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4303e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4304e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4305e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4306e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4307e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4308e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4309e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4310e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4311e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4312e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4313e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4314e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4315e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4316e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4317e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4318e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4319e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4320e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4321e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4322e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4323e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4324e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4325e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4326e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4327e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4328e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4329e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4330e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4331e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4332e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4333e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4334e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4335e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4336e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4337e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4338e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4339e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4340e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4341e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4342e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4343e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4344458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4345458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4346458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4347e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4348458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4349458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4350458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 43514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4352458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4353458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4355458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 43564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43570b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 43580b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 43590b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4361458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 43631fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4364458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4365458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4368458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 43711fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 43721fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4373458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43741fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 43750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 43787e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 43791fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4380458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4381458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4382458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4384458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4385458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4386029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 43874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4388029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4389029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4394458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4395458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 43961fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4397458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4398458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4399458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4400458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4401458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 44031fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 44047e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 44060b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4411458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 44130b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4414458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4415458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4416458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4417458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4420458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4421458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44221fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4425458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4426458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 44270b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 44280b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 44290b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4430458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 44311fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 44321fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4433458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44340b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4435458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4436458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4437458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44387e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 44391fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4440458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4441458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4442458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4444458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4445458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4446458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4447458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4448458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4449458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4450458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4451458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4452458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44530b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4454458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4455458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4456458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4457458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4458458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4460458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 44611fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4462458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 44637e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 44640b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 44651fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4466458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44671fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4468458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4469458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 44700b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4471458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4472458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4473458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4474458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4475458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4476e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4477234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4478234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 44790b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4480234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4481234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4482e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4483371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4484234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4485234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4486e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4487371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4488e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 44894032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4490e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 44914032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 44924032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 44934032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 44944032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 44954032252c997be9f5d013054dc23ace855007b3a5Adam Powell 44964032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 44974032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 44984032252c997be9f5d013054dc23ace855007b3a5Adam Powell 44994032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 45004032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 45010b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 45020b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 45030b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 45041fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4505e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 45060b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 45070b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 45080b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 45091fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4510e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4511e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4512e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4513234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 45140b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 45150b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 45160b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4517e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4518e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4519e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4520e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4522458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4523458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4527458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 45284bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 45294bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 45304e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 45314bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 45324bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 45334bede9e425875542976a422222510fa4056a8339Romain Guy */ 45344bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 45354bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 45364bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 45374bede9e425875542976a422222510fa4056a8339Romain Guy } 45384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 45394bede9e425875542976a422222510fa4056a8339Romain Guy } 454021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 454121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 454221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 454321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 45444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 454521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 454621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 454721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 454821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 454921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 45504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 45514bede9e425875542976a422222510fa4056a8339Romain Guy /** 4552458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4553458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4554458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4555458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4557458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4558458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4559458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4561458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4562322171b333a1c796fcc1428a96ea1d854a3881faErik 4563322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4564322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4565322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4566322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4567322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4568322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4569322171b333a1c796fcc1428a96ea1d854a3881faErik * 4570322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4571322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4572322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4573322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4574322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4575322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4576322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4577322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4578322171b333a1c796fcc1428a96ea1d854a3881faErik } 4579322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4580322171b333a1c796fcc1428a96ea1d854a3881faErik } 4581322171b333a1c796fcc1428a96ea1d854a3881faErik 4582458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4583e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4584e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4585e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4586e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4587e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4588e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4589e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4590e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4591e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4592e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4593e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4594e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4595e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4596e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4597e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4598e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4599e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4600e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4601458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4602458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4603458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 46044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4605458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4606458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4607458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4609458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4610458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4611458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4612458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4613458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4614458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4616458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4617458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4618458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4619458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4620458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 46220b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 46230b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 46240b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 46250b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4627458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4628458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46294032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4630299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 46314032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 46324032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 46334032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 46344032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 46354032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 46364032252c997be9f5d013054dc23ace855007b3a5Adam Powell 463779303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 46384032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4639aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 46404032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 46414032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 46424032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 46434032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 46444032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 46454032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 46460046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 46470b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4648299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4649458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4651499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4652499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4653499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4654499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4655499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4656499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4657499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4658499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4659499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4660499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4661499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4662499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4663499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4664499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4665499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4666499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4667499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4668499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4669499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4670499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4671499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4672499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4673499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4674499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4675499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4676499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4677499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4678499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4679499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4680499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4681499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4682499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4683499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4684499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4685499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4686499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 46879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 46889d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 46910211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 46969d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 46979d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 46989d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 46999d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 47009d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 47019d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 47029d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 47039d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 47049d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 47059d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 47069d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 47079d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 47089d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 47096dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 47106dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 47119d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 47129d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 47139d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 47249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4725458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 47279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4728458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 47299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4736bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4737bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4738bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4739bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4740bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4741bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4742bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4743bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4744bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4745bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4747bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4748bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 47499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4768bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4773bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 47780a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 47790a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 47800a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 47810a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47830a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4789029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4790029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4791029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4792029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4794458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4795458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4798458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4800458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 48018c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 48028c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 48038c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 48048c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4805458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4806458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4807458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4808458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4809458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4810458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4811458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4812458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4813079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4814458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4816458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4817458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4818458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4822458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4823458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 48248c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 48258c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 48268c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 48278c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4830458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4833458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4835458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4836458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4837079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 48439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4847458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4848458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4849458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4851458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4853458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4855539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 4856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4857539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 48589d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 48599d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 48609d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 48611fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 48629d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48639d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 4864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4866458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4871458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4872458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4875029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 48762a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 48772a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4878079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4879079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4880079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4881079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4882079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4883079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 48842a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4885079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4886079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4887029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4888029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 48924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4928ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4929ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4930ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 49594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4964637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4965637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4966637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4967637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4968637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4969637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4970637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4971637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4972637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4973637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4974637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4975637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4976637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4978637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4979637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 49869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49884e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 49894e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 49908d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 49918d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 49924e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 49938d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 4994becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 4995becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 4996becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 49974e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 49988d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 49994e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 50239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 50299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 50309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 50349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 50954032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 50964032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 50974032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 51043c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 511514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 511614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 511714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 511814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 511914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 512014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 512114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 512214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 512314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 512414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 512514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 512614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 512714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 512814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 512914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 513014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 513114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 513214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 513314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 513414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 513514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 513614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 513714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 513814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 513914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 514014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 514114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 514214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 514314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 514414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 514514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 514614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 514714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 514814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 514914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 515014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 515114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 515214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 515314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 515414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 515514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 515614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 515714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 515814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 515914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5163ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5164ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 516614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 516714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 516814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5170539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5171539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5172539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 517314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 517414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51820785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5185da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5186da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5187da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5188da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5189da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5190da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 51910785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5192ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 51930785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 51940785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5195ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5196ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 51970785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 51980785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 51990785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 52000785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 52010785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 52020785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 52030785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 52639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5296079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 530043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 530143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 530243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 530343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 530443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 530543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 530643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 530743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 530843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 530943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 531043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 531143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 531243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 531343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 531443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 531524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 531643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 531743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5321d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 53334df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5334b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5340b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 534424443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5347b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53934e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 53944e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 53954e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 53964e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 53974e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 53984e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 53994e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 54024e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 54034e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5424b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 544083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 54418d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 54428d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5443b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5444b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5445b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5446b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 544783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 544883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 544983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 545083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 545183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 545283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5458cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5462b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5467105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5489b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5490b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5491b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5492b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5493c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5494c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5495c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5496c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5497c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 54981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 54991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 55001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 55011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 55021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 55031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 55041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 55051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 55061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 55071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 55091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 55101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 55111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 55121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 55131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 55141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 55151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 55161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 55171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 55181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 55191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 55211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 55231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 55251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 55261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 55271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 55281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5529c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 55301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 55311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 55331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 55351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 55361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 55371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5538c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5539c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5540b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 55410a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5542b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5543b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5544b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5545b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5546b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5547b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5548b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5549b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 55500a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5551b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 55604df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 55614df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5564b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5565b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5566b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5567b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5568b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5569105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5580d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 561224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 561743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 56261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 56331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 56341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5637c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 56461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 56579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 56641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 56659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 56719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5677aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5678aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5679aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5680aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5681aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5682aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 56859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 57069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 57089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 57139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 57159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 57169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 57239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 57285be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 57295be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 57305be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 57315be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 57325be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 573752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 573852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 573952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 574052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 574152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 574252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 574352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 574452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57537b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 577213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 5776c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 578813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 578913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 579013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 579113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 579213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 579313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 579413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 579513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 579613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 579713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 579813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 579913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 580013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 580113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 580213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 580352964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 580413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 580513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 580613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 580713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 580813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 580913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 581013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 581113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 581213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 581313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 581413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 581513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 581613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 581713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 581813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 581913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 582013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 582113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 582213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 582313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 582413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 582513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 582613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 582713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 582813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 582913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 583013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 583152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 583213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 583313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 583413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 583513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 583652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 583713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 583813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 583913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 584013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 584113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 584213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 584313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5844637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5845637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 585113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5852499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5853499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5854499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5855499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5856499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 58579b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 58589b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 58593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 58603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 58613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 58623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 58633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 58643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 58653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 58669b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 58672148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 58689b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5869499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5870499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5871499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5872499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 58732148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 58742148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 58752148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 58762148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 58772148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 58782148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 58792148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 58802148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5881499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5882499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 588316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5884499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5885499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 58862148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 58872148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 58882148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 58892148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 589016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5891fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5892fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 589316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5894499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 589516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5896499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5897499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5898499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5899499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5900499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5901499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5902fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5903fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5904fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5905fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5906fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5907499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5908499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5909499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5910b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 5911b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 5912b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 5913b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 5914b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 5915b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 5916b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5917b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5918b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 5919b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 59209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 59219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 59239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 59319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 59329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5934b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5935b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5936b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5937b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5938b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5939b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5940b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5941b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5942b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5943b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5944b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5945b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5946b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5947b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5948b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5949b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5950b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5951b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 59529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 60229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 60239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 60259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 60279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 60289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6029bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 60309bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 60319bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 60329bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 60339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 60349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60354df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 60364df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 60374df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 60384df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 60394df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 60404df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6041bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 60424df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 60434df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 60440bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 60450bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 60460bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 60470bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 60480bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 60490bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 60500bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 60510bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6052bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 60530bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 60540bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6055079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6056079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6057079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6058079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6059079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6060079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6061079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6062539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6063539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6064539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6065539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6066539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 60679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 60689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 60699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 60729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 60739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 60769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 60779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 60789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 60819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 60829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 60879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 60889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 60899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 60919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 60929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 60949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 60969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 60979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 60989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 61069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 61079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 61089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 61099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 61109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 61129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 61139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 61159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 61169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 61199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 61219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 61249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 61259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 61269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 61279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 61299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 61329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 61349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 61369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 61389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6139539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6140539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6141539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6142539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 61439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 61449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 61459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 61469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 61489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 61499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 61509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 61519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 61539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 61549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 61559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6157f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6158f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6159f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6160f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6161f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6162f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6163f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6164f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6165f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6166f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6167f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6168f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6169f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6170f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6171f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6172f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6173f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6174539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6175539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6176539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6177539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6178539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6179539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6180f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 61810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 61829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 61839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 61849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 61889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 61909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 61919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 61929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 61939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 61949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 61959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 61979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 61989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 61999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 62009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 62019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 62029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 62039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6206539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6207539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6208539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 62099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 62139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 62159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 62169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 62179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 62199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 62209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 62219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 62239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 62259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 62269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 62279c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 62289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 62299c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 62309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 62319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 62324df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 62339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 62399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 62409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 62429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 62439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 62459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 62469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 62479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 62489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 62499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 62509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 62519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 62539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6255539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6256539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6257539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6258539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6259539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int index = mTransientStateViews.indexOfKey(position); 6260539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (index < 0) { 6261539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6262539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6263539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final View result = mTransientStateViews.valueAt(index); 6264539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.removeAt(index); 6265539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return result; 6266539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6267539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6268539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6269539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6270539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6271539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6272539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6273539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6274539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6275539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6276539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 62799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 62819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6282079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 62839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 62849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 62859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6286079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 62879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 62909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6293539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 62949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 62969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6297079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 62989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 62999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 63009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 63019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6303539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6304539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 63059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 63069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 63079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6308539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6309539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6310539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || scrapHasTransientState) { 6311539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6312539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6313539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6314539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6315539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6316539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6317539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6318539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6319539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6320539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(position, scrap); 63219b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 63229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 63239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6325539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 63269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 63279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 63289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 63309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6332c1d7e770e123adfa992d013fa294693d077cbc78alanv scrap.setAccessibilityDelegate(null); 63339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 63349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 63359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6339539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6340539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6341539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6342539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6343539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6344539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6345539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6346539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6347539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6348539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6349539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6350539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6351539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6352539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 63539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 63549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 63569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 63579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 63589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 63599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 63619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6362a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 63639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 63649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6365079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6366079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6367079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 63689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 63709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6371539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6372539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 63739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6374539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || 6375539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 63769b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 63779b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6378539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6379539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6380539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6381539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6382539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(mFirstActivePosition + i, victim); 6383539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 63849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 63859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 63889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 63899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6390a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6391079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 63929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 63939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6394c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 63959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 63969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 63979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 64009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 64019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 64029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 64039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 64089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 64129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 64139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 64159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 64169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 64179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 64189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 64199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 64209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 64219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 64229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 64239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 64249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 64259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6427bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6428bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6429bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6430bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6431bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6432bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6433bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6434bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6435bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6436bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 64379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 64419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 64439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 64449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 64459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 64469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 64479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 64489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 64499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 64509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 64519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 645452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 645552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 645652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 645752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 645852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 645952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 646052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 646152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 646252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 646352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 646452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 646552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 646652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 646752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 646852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 646952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 647052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 647152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 647252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6473266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 647452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 647552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 647652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 647752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 647852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 647952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 648052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 648152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 648252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 648352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 648452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 648552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 648652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 64879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6488079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6489079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6490079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6491079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6492079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6493079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6494079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6495079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6496079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6497079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6498079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6499079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6500079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6501079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6502079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6503079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6504079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6505079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 65069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6507