AbsListView.java revision da13dbae6fe0619101433ac861da460b8be63a36
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; 23637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.content.res.Resources; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 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; 40f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 41079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 42f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 43637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 48f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 58b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 59b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 67d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 68d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 69d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 80f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 84499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 85499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which IDs are currently checked 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> mCheckedIdStates; 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 256499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 257499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 258499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 259499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 260499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 271079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * Set to true if we would like to have the selector showing itself. 272079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * We still need to draw and position it even if this is false. 273079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 274079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn boolean mSelectorShowing; 275079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 276079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 277079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 278079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 279079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 280079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 281079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 3884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4600b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4861cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 4871cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 4881cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 4891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 4901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 4911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 4921cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 4931cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 4941cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 541d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 543d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5486dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5496dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5504296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5514296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 55221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5534e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 55421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 55624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 55724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 55824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 5716dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 574637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 575637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 576637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 577637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 580637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private EdgeGlow mEdgeGlowTop; 589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private EdgeGlow mEdgeGlowBottom; 594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 615da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 616da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 617da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 618da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 619da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 620da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 669e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 670e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 671e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 672e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 673e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 674e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 675e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 676e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 677e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 678e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 679e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 680e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 681e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 682e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 683e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 684e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 73630346c4399af45b46996f504004796177b975349Romain Guy final int adapterId = a.getResourceId(R.styleable.AbsListView_adapter, 0); 73730346c4399af45b46996f504004796177b975349Romain Guy if (adapterId != 0) { 73830346c4399af45b46996f504004796177b975349Romain Guy final Context c = context; 73930346c4399af45b46996f504004796177b975349Romain Guy post(new Runnable() { 74030346c4399af45b46996f504004796177b975349Romain Guy public void run() { 74130346c4399af45b46996f504004796177b975349Romain Guy setAdapter(Adapters.loadAdapter(c, adapterId)); 74230346c4399af45b46996f504004796177b975349Romain Guy } 74330346c4399af45b46996f504004796177b975349Romain Guy }); 74430346c4399af45b46996f504004796177b975349Romain Guy } 745d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 746f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 747f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 751d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 752d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 753df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 754d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 755d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 756d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 757d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 758d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 7594296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 7604296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 7614296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 7624296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 763637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 764637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 766d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 767d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 7680a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 7734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 7744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira final Resources res = context.getResources(); 775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable edge = res.getDrawable(R.drawable.overscroll_edge); 776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable glow = res.getDrawable(R.drawable.overscroll_glow); 7774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowTop = new EdgeGlow(context, edge, glow); 7784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowBottom = new EdgeGlow(context, edge, glow); 779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 787d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 788f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 789f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 790f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 791f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 792f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 793f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 796f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 798f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 799f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 800f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 801f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final LongSparseArray<Boolean> idStates = mCheckedIdStates; 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 988bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1012bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1034bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1035bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1036bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 1101637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount != mItemCount) { 1102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return false; 1103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return getChildAt(0).getTop() >= 0 && getChildAt(childCount - 1).getBottom() <= mBottom; 1106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1107637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 11430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 11610a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11650a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 12706bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1326a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 13272614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1328f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 1329f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> checkIdState; 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1349a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 13502614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1351f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 1352f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell long[] idState = in.createLongArray(); 1353f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1354f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (idState.length > 0) { 1355f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState = new LongSparseArray<Boolean>(); 1356f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState.setValues(idState, Boolean.TRUE); 1357f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1369a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 13702614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1371f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 1372f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1384f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1385f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1404f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1449a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1450a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 1451f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkState = mCheckStates; 1452f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkIdState = mCheckedIdStates; 14532614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1454f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1477079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1487f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1488f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1489f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1490f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1491f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1492f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1493f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1494f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 14952614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 14962614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1497a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1498a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1499a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1500a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1501a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1506d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1507d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 15130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15390a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1577079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 1578079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16220b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 16230b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 16430b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 16440b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 16450b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 16500b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 16510b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 16520b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 16530b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1702da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1703da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1704da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1705da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1706da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int listBottom = getBottom() - getPaddingBottom(); 1707da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1708da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1709da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mOldItemCount && 1710da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1711da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1714d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1715d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1716d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1717d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1722f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1723f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1724f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1725f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1726f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1727f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1728f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1729f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1743d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1744d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1745d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1746d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1747d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1748d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1749d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1750d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1756d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1757d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1758d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 186121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 186221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 18634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 186621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 186721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 1887079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 189521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1896a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1897a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1913079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 1914079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 1915079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 1916079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1917079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 1920e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 1921e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 1922e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 1929079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelectorShowing) { 1930079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 1931079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1977d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2010079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2054079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2072df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2073df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2074df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2075df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2079079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2083ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2084ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2085ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2086ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2093df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2094df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2114079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2115079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2116079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2117079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2118079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2119079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2120079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2121079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2122079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2123079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2127079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2170e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2171e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2172e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2173e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2174e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2175e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 2182d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 2183d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 2184d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 218782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 218882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 218982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 21906a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 21916a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 21926a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 21936a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 21946a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 219582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22021f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 22031f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 22041f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 220521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 220621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 220721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 2211d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 2212d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 2213d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 2214d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 221682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 221782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 221882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 221982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 222082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 22211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 22221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 22231cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 22241cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 22251cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 22261cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 22271cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 22281cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 22291cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 22301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2241670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2242670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2243670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2244670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2245670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 2246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 2248637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2251670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 226097566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 23060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2325005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2326005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2327005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2328005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2329005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 2330005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 23440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23570a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23818350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2383f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2384f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 2385f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode == null) { 2386f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 2387f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 2388f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2389f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // TODO Should we select the long pressed item if we were already in 2390f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selection mode? (i.e. treat it like an item click?) 2391f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2392f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2393f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2395f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2439df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2440df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2441df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2442df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2443df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2448dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2449dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2450dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2451df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2452dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2454dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 245645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 245745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 245845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 245945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2463dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2530079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2531079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25570a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2568637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 2571637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 2609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 2610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 2611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 2616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2625dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2626dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2627dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2628dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2629dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2630dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26350a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 263782f3495b146b267f3786997752cef25310176349Romain Guy 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 2650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 2651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 2652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 2655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 2661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 2663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 2664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 2665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 2666637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 2667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 2668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 2669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // click or a scroll. Assume it is a click until proven otherwise 2670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 2671637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 2672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 2673637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 2674637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2675637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 2676637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2677637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 2678637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // If we couldn't find a view to click on, but the down event was touching 2679637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // the edge, we will bail out and try again. This allows the edge correcting 2680637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // code in ViewRoot to try to find a nearby view to select 2681637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return false; 2682637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2683637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2684637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 2685637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 2686637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 2687637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2688637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2689637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 2690637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 2691637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 26929d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 269379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 26949d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 2695637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 2696637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 2697637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 2698637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 2699637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2700637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 2701637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2702637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2703637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 2704637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2705637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 27114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 27124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan == null) { 27311cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick // If it's non-null, we're already in a scroll. 27321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 27331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 27341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2736110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2737110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2738110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2739110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2740110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2741110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2742110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2743110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 2744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2747a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 2748637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionIndex; 2749637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mMotionPosition >= 0) { 2750637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = mMotionPosition - mFirstPosition; 2751637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2752637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // If we don't have a motion position that we can reliably track, 2753637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // pick something in the middle to make a best guess at things below. 2754637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = getChildCount() / 2; 2755637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2756637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2757637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionViewPrevTop = 0; 2758637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(motionIndex); 2759637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2760637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionViewPrevTop = motionView.getTop(); 2761637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2762637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 27636198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 27656198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 27676198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = this.getChildAt(motionIndex); 2771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check if the top of the motion view is where it is 2773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // supposed to be 2774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionViewRealTop = motionView.getTop(); 2775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEdge) { 2776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Apply overscroll 2777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overscroll = -incrementalDeltaY - 2779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (motionViewRealTop - motionViewPrevTop); 2780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 2781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 2783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 2784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 2785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 2791637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = 0; // Reset when entering overscroll. 2792637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 2794637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) overscroll / getHeight()); 2795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 2796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 2797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 2799637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 2800637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 2801637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 2802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 280579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2806b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2807b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 280879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 280979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 281079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 281179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 2812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 2814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (y != mLastY) { 2815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 2816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell deltaY -= mMotionCorrection; 2817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int oldScroll = mScrollY; 2820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int newScroll = oldScroll - incrementalDeltaY; 2821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int newDirection = y > mLastY ? 1 : -1; 2822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2823637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection == 0) { 2824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 2825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection != newDirection) { 2828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Coming back to 'real' list scrolling 2829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell incrementalDeltaY = -newScroll; 2830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 2831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // No need to do all this work if we're not going to move anyway 2833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (incrementalDeltaY != 0) { 2834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 2835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we are back in 2838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 2839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2842637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // We did not scroll the full amount. Treat this essentially like the 2843637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // start of a new touch scroll 2844637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionPosition = findClosestMotionRow(y); 2845637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = getChildAt(motionPosition - mFirstPosition); 2848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = motionView.getTop(); 2849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, -incrementalDeltaY, 0, mScrollY, 0, 0, 2854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2855637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2856637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2857637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 2859637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 2860637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) -incrementalDeltaY / getHeight()); 2861637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 2862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 2863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 2865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) -incrementalDeltaY / getHeight()); 2866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 2867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 2868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 2873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 2874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 2875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2877637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = y; 2878637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 2879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 2916005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2917005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 2921079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 29266198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 2931079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 2939005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 2940005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 2941079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2944005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2945005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2949079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 29526198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 29536198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 2954637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 2955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 2956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 2957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 2958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 29596198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 2960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 29616198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 29626198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 29636198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 29646198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 29656198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 2966637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 296721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 296821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 2969637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 2970637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 2971637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 2972637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 2973637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 2974637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 2975637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 2976637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 2977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 29786198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 29796198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 29806198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 29816198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 29824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 29836198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 2984f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 2985f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 2986f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 2987d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 2988d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 2989d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 29906198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 299679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 2997637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2998637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 2999637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3000637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3001637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3002637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3004637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3006637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3007637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3008637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3009637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3010637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3011637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3012637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3013637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3018637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3019637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3020637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3022637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 30250a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 30364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30441cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 30451cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 30461cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 30471cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 30481cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3053637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3061637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3063637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3074637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3080637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.recycle(); 3081637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker = null; 3082637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3085637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3086637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3087637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 30904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 30914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 30924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 30934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 30944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 30954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 30964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 30974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 30984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 30994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 31004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 31014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 31024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 31034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 31044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 31054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell protected void onOverScrolled(int scrollX, int scrollY, 3114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean clampedX, boolean clampedY) { 3115637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = scrollY; 3116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3117637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (clampedY) { 3118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Velocity is broken by hitting the limit; don't start a fling off of this. 3119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 3121637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell awakenScrollBars(); 3124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 3133637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int width = getWidth(); 3134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3135a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira canvas.translate(0, Math.min(0, scrollY + mFirstPositionDistanceGuess)); 3136a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 3138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 3144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int width = getWidth(); 3145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3147a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira canvas.translate(-width, 0); 3148a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira canvas.rotate(-180, width, 0); 3149a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira canvas.translate(0, -height); 3150a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 3152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 31750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 31834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 318579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3186637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3187637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3188637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3189637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 31924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 31934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 31944e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 319679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 32009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 320879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 32094b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 32104b4f40f84e72579417604143e5f42115769649b8Romain Guy } 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 32174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 32184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 32294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 32354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 32364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 32374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 32419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 32444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 32454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 32464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 32474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 32484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 32494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 32504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 32514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 32524cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 32534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3254637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 32554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 32564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 32574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 32584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 32819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 32879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 32889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 32909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 32949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 32950046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3310637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 33119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 33149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3317d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3318d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3319d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3320d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3321637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3322d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3323d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3324d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3325d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3326d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3327d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3328d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3329d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (scroller.isScrollingInDirection(0, yvel)) { 3330d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3331d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3332d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3333d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3334d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3335b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3336d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3337d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3338d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3339d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3340d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3341d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 334279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3343637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 334679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33601cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 33611cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 33621cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 33631cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3365458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3366637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3367637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3368637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3370637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3371637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3372637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3373637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3374637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3375637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3376637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 3377637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int min = mScrollY > 0 ? Integer.MIN_VALUE : 0; 3378637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int max = mScrollY > 0 ? 0 : Integer.MAX_VALUE; 3379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, min, max, 0, getHeight()); 3380637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3381637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3382637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3383637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3384637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3385637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3388637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3389637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3390637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3391637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3392637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3393637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3394637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3395637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3396637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3397637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3400637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 3403458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 3405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3406458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 3407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3410d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3412458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 341379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3414d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 3415458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 3416458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 3417458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 341821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 341921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 342021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3421d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 34225e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 34235e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 34245e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 34255e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 34265e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3427d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3428d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3429d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3430d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 343479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 343579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3436d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 34384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3439d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3440d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3441d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3442d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3443d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3444637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 344579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 344679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 344779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 344879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3450637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3451637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3452637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3454637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3455637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3456637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3472637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3473637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3474d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3475637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3476637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3477637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3478d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 3487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 3488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3489637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3490637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3491637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3492637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3493637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 3494637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3495637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell edgeReached(delta); 3496637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3497637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3498637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 3500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 3502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 3507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 3508637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 3509637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 3510637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3511d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3512637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 3513637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 3514637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 3515637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3518637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3519637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3520637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3521637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3522637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3523637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 3524637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3525637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int deltaY = scroller.getCurrY() - scrollY; 3526637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 3527637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 3528637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell startSpringback(); 3529637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3530637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3531637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3532637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3533637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3534637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3535637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3536637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3537637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3543458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 35454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3546458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3547458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3548458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3549458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3550e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 35514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3552458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3553458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3554458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3555458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 355752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3558e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3559e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 35604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3561458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3562458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3563458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 35644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 3566458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3567458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 35684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35694bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 35704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (position <= firstPos) { 3571458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3572458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3576458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3578458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 35804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3582458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3583458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3584458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3586458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3587458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3588458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 35894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3590458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3591458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 35924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3593458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 3594458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3595458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3596458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3597458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 35984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3599458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3600458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 36014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36024bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3603fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3604458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3605458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3606458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3607458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3610458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3611458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3612458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3613458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3614458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3615458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3616458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3617458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3618458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3619fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3620458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3623458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3627458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3628458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3629458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3630458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3632458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3633458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3634458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3635458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3636458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3637458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3638458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36394e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3640458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3641458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3642458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3643458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3644458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3645458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3646458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3647458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 36484e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3649458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3651e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3652e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 3653322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 3654322171b333a1c796fcc1428a96ea1d854a3881faErik } 3655322171b333a1c796fcc1428a96ea1d854a3881faErik 3656322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 3657e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 3658e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 3659e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 3660e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 3661e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 3662e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3663e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 3664371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3665371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3666e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 36674bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3668e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3669e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 3670e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3671e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 3672e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3673e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3674e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3675322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 3676e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 3677e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3678e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3679371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 36804ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 3681322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3682322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 3683371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 3684234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3685e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3686e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3687e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3691e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3693371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3694371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 3695371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 3696371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3698458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 36994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3703458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 37044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37050b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 37060b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 37070b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3709458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3710458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3711458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3713458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3714458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3715458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3716458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3719029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3721029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3724458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 37257e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3728458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3729458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37304e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3731458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3733029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 37344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3735029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3736029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3737458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3739458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3740458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3741458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 3742458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3743458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3744458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3745458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3746458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3747458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 3748458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3749458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3750458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 37517e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3752458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3753458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3754458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3755458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3756458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3757458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 37594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 3760458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3770458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3771458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3772458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3773458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 37740b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 37750b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 37760b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3777458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3778029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3779458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3780029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 3781458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3782458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 3783458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 37847e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 3785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3790458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 3791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 3792458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 3793458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3794458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3795458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 3796458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3798458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3799458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3800458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3801458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3802458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3803458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3804458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3805458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3806458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3807458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 38087e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 3809458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 3810458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3811458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3812458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 3813458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 3814458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 3815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 3816458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3817458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3818458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3819458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3820458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3821e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 3822234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 3823234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 3824234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 3825234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 3826234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 3827e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3828371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 3829234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3830234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 3831e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 3832371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3833e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3834e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3835371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(-getHeight(), mScrollDuration); 3836e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3837e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3838371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(getHeight(), mScrollDuration); 3839e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3840e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3841e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3842e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3843234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 3844234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 3845234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 3846e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3847e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 3848e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3849e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3850458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 3851458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3852458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3853458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 38574bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 38584bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 38594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 38604bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 38614bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 38624bede9e425875542976a422222510fa4056a8339Romain Guy */ 38634bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 38644bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 38654bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 38664bede9e425875542976a422222510fa4056a8339Romain Guy } 38674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 38684bede9e425875542976a422222510fa4056a8339Romain Guy } 386921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 387021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 387121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 387221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 38734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 387421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 387521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 387621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 387721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 387821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 38794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38804bede9e425875542976a422222510fa4056a8339Romain Guy /** 3881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 3883458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3885458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 3886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 3890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3891322171b333a1c796fcc1428a96ea1d854a3881faErik 3892322171b333a1c796fcc1428a96ea1d854a3881faErik /** 3893322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 3894322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 3895322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 3896322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 3897322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 3898322171b333a1c796fcc1428a96ea1d854a3881faErik * 3899322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 3900322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 3901322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 3902322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 3903322171b333a1c796fcc1428a96ea1d854a3881faErik */ 3904322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 3905322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 3906322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 3907322171b333a1c796fcc1428a96ea1d854a3881faErik } 3908322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 3909322171b333a1c796fcc1428a96ea1d854a3881faErik } 3910322171b333a1c796fcc1428a96ea1d854a3881faErik 3911458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3912e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 3913e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 3914e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 3915e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 3916e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 3917e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 3918e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 3919e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 3920e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 3921e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 3922e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 3923e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 3924e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 3925e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3926e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 3927e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3928e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3929e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 3930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 3932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 39334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 3934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3935458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 3936458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 3937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3938458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 3939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 3943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 3947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 3948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 3949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3950458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 3951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 3952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 3953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3954299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 3955299acb581205b6574bfa91824b1b887e265c4c40Marc Blank if (distance != 0) { 39560046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3957299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 39580046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell } else { 39590046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mFlingRunnable.endFling(); 3960299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 3961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3963499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 3964499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 3965499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 3966499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 3967499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 3968499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 3969499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 3970499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 3971499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 3972499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3973499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3974499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 3975499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 3976499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 3977499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 3978499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 3979499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 3980499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 3981499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 3982499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 3983499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 3984499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 3985499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 3986499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 3987499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 3988499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 3989499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 3990499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 3991499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 3992499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3993499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3994499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 3995499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3996499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3997499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3998499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 40086dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 40096dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 40106dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 40116dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 40126dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 40136dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 40146dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 40156dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 40166dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 40176dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 40186dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 40196dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 40206dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 40216dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 40226dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40246dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 40349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 40429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 40439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 40459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 40479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 40509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 40549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 40569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 40629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4064458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 40659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess = firstTop - mListPadding.top; 4069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess = lastBottom + mListPadding.bottom; 4074637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0 && firstTop >= listPadding.top && incrementalDeltaY >= 0) { 4079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 4080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 4081637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4082458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && 4085637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell incrementalDeltaY <= 0) { 4086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 4087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 4088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4089458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4091458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4093029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4094029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4095029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4096029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4099458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 41058c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 41068c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 41078c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 41088c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4113458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4114458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4116458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4117079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4119458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 41288c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 41298c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 41308c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 41318c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4132458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4133458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4135458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4136458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4137458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4141079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4144458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4145458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4146458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 41479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4152458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 41569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 41589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 41619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 41719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4173029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 41742a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 41752a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4176079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4177079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4178079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4179079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4180079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4181079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 41822a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4183079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4184079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4185029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4186029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 4190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 41914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 41939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 41979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 41989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 42009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 42029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 42039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 42079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 42089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 42109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 42129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 42139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 42179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 42189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 42199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 42229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 42269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4227ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4228ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4229ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 42309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 42319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 42329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 42359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 4236079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 42379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 42429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 42439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 42449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 42469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 42479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 42489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 42499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 42519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 42529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 42539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 42594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4265637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4266637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4267637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4270637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4271637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4274637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4275637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4276637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4277637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4278637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4279637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 42809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 42819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 42869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 42879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 42989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 42999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 43029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 43039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 43059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 43069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 43109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 43189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 43219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 43229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 43249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 43259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 43269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 43279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 43369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 43379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 43409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 43419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 43429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 43439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 43449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 43459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 43469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 43499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 43509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 43519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 43639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 43649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 43669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 43679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 43689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 43699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 43739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 43749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 43759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 43769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 4383371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell removeCallbacks(mPositionScroller); 43849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 43919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 44019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 44029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 44039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 44049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 44069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 44089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 44109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 44119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 44129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 44139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44140785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 44159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 44169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4417da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 4418da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 4419da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 4420da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 4421da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 4422da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 44230785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 44240785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int listBottom = getBottom() - getPaddingBottom(); 44250785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 44260785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 44270785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mFirstPosition + childCount >= mOldItemCount && lastBottom <= listBottom) { 44280785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 44290785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 44300785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 44310785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 44320785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 44330785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 44340785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 44359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 44399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 44429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 44529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 44549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 44559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 44579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 44609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 44649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 44699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 44709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 44719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 44759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 44769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 44779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 44789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 44799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 44819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 45049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 45069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 45079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 45139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 45149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 45219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 45229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 45239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 45249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 45259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 45269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 4527079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 45289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 453143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 453243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 453343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 453443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 453543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 453643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 453743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 453843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 453943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 454043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 454143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 454243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 454343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 454443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 454543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 454624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 454743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 454843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4552d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 45539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 45609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 45629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 45639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 45644df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 4565b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 45669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 45689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4571b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 45739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 457524443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 45769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 45779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 4578b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 45799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 45809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 45819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 45839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 45889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 45899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 45939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 45989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 46019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 46029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 46049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 46089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 46099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 46109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 46119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 46219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 46429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 46459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 4647b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 46489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 46499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 46529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 46559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 46619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 466383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 46648d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 46658d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 46668d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 466783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 466883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 466983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 467083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 467183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 467283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 46759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 4678cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4682b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 46839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 46849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 46869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 4687105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 46889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 46989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4709b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 4710b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4711b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4712b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4713c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 4714c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 4715c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 4716c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 4717c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 47181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 47191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 47201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 47211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 47221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 47231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 47241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 47251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 47261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 47271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 47281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 47291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 47301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 47311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 47321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 47331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 47341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 47351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 47361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 47371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 47381bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 47391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 47401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 47411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 47421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 47431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 47441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 47451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 47461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 47471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 47481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 47491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 47501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 47511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 47521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 47531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 47541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 47551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 47561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 47571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 4758c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 4759c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 4760b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 47610a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4762b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 4763b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 4764b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 4765b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4766b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4767b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 4768b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 4769b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 47700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4771b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 47804df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 47814df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 4784b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 4785b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 4786b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 4787b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 4788b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 4789105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 4800d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 48169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 48179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 48249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 48279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 483224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 483743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 48399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 48461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 48531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 48541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 4857c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 48661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 48779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 48841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 49425be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 49435be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 49445be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 49455be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 49465be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 495152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 495252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 495352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 495452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 495552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 495652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 495752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 495852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 498513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 49869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 500013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 500113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 500213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 500313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 500413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 500513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 500613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 500713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 500813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 500913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 501013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 501113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 501213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 501313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 501413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 501552964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 501613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 501713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 501813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 501913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 502013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 502113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 502213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 502313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 502413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 502513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 502613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 502713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 502813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 502913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 503013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 503113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 503213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 503313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 503413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 503513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 503613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 503713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 503813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 503913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 504013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 504113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 504213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 504352964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 504413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 504513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 504613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 504713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 504852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 504913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 505013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 505113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 505213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 505313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 505413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 505513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5060637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5061637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 506313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5064499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5065499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5066499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5067499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5068499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 50699b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 50709b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 50713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 50723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 50733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 50743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 50753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 50763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 50773ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 50789b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 50799b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 50809b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5081499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5082499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5083499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5084499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5085499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5086499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5087499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterConnected() { 5088499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5089499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 5090499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5091499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5092499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5093499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5094499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5095499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5096499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5097499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter == mAdapter) { 5098499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = null; 5099499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(null); 5100499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5101499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5102499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5103499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5195bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 51969bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 51979bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 51989bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52014df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 52024df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 52034df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 52044df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 52054df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 52064df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5207bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 52084df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 52094df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 52100bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 52110bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 52120bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 52130bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 52140bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 52150bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 52160bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 52170bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 5218bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 52190bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 52200bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 5221079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 5222079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 5223079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 5224079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 5225079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 5226079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 5227079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 52639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5314f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 5315f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 5316f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 5317f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5318f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 5319f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 5320f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5321f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 5322f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 5323f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 5324f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 5325f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5326f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 5327f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 5328f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5329f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5330f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5331f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 53320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 53759c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 53779c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 53804df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5408079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 5412079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5423079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 54339b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 54349b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 54359b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5439079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = position; 5440079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5442a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5445a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 5464a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 5467079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 5468079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 5469079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54739b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 54759b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 54769b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 54779b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5484a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 5485079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 55109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 553752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 553852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 553952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 554052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 554152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 554252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 554352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 554452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 554552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 554652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 554752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 554852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 554952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 555052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 555152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 555252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 555352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 555452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 555552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 5556266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 555752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 555852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 555952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 556052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 556152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 556252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 556352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 556452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 556552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 556652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 556752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 556852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 556952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5571079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5572079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 5573079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 5574079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 5575079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 5576079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 5577079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 5578079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 5579079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 5580079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 5581079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 5582079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5583079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5584079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 5585079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5586079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 5587079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5588079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5590