AbsListView.java revision 16bb80af66012cee1625dd4e926c1fbdf87b8670
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)); 74720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 74820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 749f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 753d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 754d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 755df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 756d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 757d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 758d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 759d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 760d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 7614296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 7624296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 7634296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 7644296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 768d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 769d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 7700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 7754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 7764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira final Resources res = context.getResources(); 777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable edge = res.getDrawable(R.drawable.overscroll_edge); 778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable glow = res.getDrawable(R.drawable.overscroll_glow); 7794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowTop = new EdgeGlow(context, edge, glow); 7804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowBottom = new EdgeGlow(context, edge, glow); 781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 789d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 790f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 791f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 792f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 793f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 796f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 798f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 799f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 800f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 801f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final LongSparseArray<Boolean> idStates = mCheckedIdStates; 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 990bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1014bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1036bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1037bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1038bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1101637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 1103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount != mItemCount) { 1104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return false; 1105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1107637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return getChildAt(0).getTop() >= 0 && getChildAt(childCount - 1).getBottom() <= mBottom; 1108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 113420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 113520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 113620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 113720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 113820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 113920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 114020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 114120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 114220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 114320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 114420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 114520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 114620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 114720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 114820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 114920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 115020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 115120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 115220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 115420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 115520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 115620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 115820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 115920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 116020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 116120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 116220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 116320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 116420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 116520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 116620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 116720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 116820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 116920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 117016bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 117120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 117220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 117420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 117620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 118620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 118720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 118820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 118920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 119020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 119120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 11960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 13236bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1379a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 13802614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1381f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 1382f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> checkIdState; 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1402a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 14032614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1404f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 1405f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell long[] idState = in.createLongArray(); 1406f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1407f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (idState.length > 0) { 1408f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState = new LongSparseArray<Boolean>(); 1409f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState.setValues(idState, Boolean.TRUE); 1410f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1422a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 14232614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1424f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 1425f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1437f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1438f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1457f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1502a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1503a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 1504f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkState = mCheckStates; 1505f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkIdState = mCheckedIdStates; 15062614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1507f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1530079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1540f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1541f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1542f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1543f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1544f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1545f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1546f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1547f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15482614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 15492614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1550a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1551a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1552a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1553a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1554a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1559d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1560d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 15660a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1630079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 1631079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16750b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 16760b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 16960b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 16970b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 16980b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1699637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1700637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1701637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1702637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 17030b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 17040b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 17050b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 17060b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1755da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1756da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1757da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1758da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1759da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int listBottom = getBottom() - getPaddingBottom(); 1760da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1761da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1762da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mOldItemCount && 1763da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1764da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1767d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1768d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1769d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1770d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1775f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1776f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1777f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1778f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1779f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1780f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1781f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1782f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1796d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1797d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1798d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1799d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1800d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1801d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1802d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1803d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1809d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1810d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1811d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 191421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 191521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 19164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 191921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 192021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 1940079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 194821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1949a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1950a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1966079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 1967079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 1968079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 1969079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1970079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 1973e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 1974e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 1975e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 1982079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelectorShowing) { 1983079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 1984079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 202520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 202620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 202720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 202820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 202920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 203020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 203120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 203220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 203320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 203420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 203520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 203620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 203720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 203820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 203920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 204020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 204120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 204220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 204320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 204420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 204520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 204620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 204720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 204820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 204920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2055d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2088079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2132079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2150df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2151df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2152df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2153df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2157079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2161ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2162ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2163ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2164ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2171df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2172df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2192079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2193079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2194079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2195079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2196079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2197079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2198079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2199079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2200079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2201079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2205079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2248e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2249e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2250e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2251e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2252e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2253e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 2260d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 2261d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 2262d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 226582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 226682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 226782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 22686a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 22696a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 22706a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 22716a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 22726a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 227382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22801f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 22811f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 22821f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 228321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 228421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 228521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 2289d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 2290d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 2291d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 2292d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 229482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 229582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 229682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 229782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 229882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 22991cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23001cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 23011cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 23021cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 23031cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 23041cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23051cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 23061cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 23071cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 23081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2319670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2320670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2321670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2322670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2323670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 2324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 2326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2329670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 233897566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 23840a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23880a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23930a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2403005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2404005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2405005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2406005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2407005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 2408005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 24220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24350a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24598350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2461f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2462f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 2463f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode == null) { 2464f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 2465f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 2466f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2467f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // TODO Should we select the long pressed item if we were already in 2468f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selection mode? (i.e. treat it like an item click?) 2469f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2470f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2471f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2473f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2517df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2518df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2519df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2520df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2521df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2526dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2527dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2528dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2529df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2530dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2532dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 253445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 253545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 253645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 253745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2541dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2608079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2609079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26350a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 2649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2685637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2686637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 2687637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 2688637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 2689637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2690637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2691637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2692637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2693637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 2694637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2695637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2696637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2697637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2703dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2704dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2705dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2706dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2707dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2708dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 271582f3495b146b267f3786997752cef25310176349Romain Guy 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 2728637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 2729637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 2730637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2731637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 2733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2734637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2735637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 2739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2740637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 2741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 2742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 2743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 2744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 2745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 2746637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 2747637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // click or a scroll. Assume it is a click until proven otherwise 2748637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 2749637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 2750637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 2751637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 2752637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2753637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 2754637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2755637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 2756637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // If we couldn't find a view to click on, but the down event was touching 2757637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // the edge, we will bail out and try again. This allows the edge correcting 2758637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // code in ViewRoot to try to find a nearby view to select 2759637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return false; 2760637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2761637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2762637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 2763637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 2764637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 2765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 2768637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 2769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27709d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 277179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 27729d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 2773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 2774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 2775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 2776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 2777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 2779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 2782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 27894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 27904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan == null) { 28091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick // If it's non-null, we're already in a scroll. 28101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 28111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 28121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2814110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2815110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2816110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2817110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2818110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2819110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2820110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2821110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 2822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2825a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 2826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionIndex; 2827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mMotionPosition >= 0) { 2828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = mMotionPosition - mFirstPosition; 2829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // If we don't have a motion position that we can reliably track, 2831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // pick something in the middle to make a best guess at things below. 2832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = getChildCount() / 2; 2833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionViewPrevTop = 0; 2836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(motionIndex); 2837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionViewPrevTop = motionView.getTop(); 2839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 28416198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 28436198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 28456198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = this.getChildAt(motionIndex); 2849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check if the top of the motion view is where it is 2851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // supposed to be 2852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionViewRealTop = motionView.getTop(); 2853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEdge) { 2854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Apply overscroll 2855637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2856637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overscroll = -incrementalDeltaY - 2857637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (motionViewRealTop - motionViewPrevTop); 2858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 2859637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2860637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 2861637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 2862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 2863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 2869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = 0; // Reset when entering overscroll. 2870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 2872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) overscroll / getHeight()); 2873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 2874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 2875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 2877637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 2878637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 2879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 2880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 288379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2884b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2885b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 288679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 288779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 288879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 288979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 2890637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2891637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 2892637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (y != mLastY) { 2893637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 2894637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell deltaY -= mMotionCorrection; 2895637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2896637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2897637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int oldScroll = mScrollY; 2898637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int newScroll = oldScroll - incrementalDeltaY; 2899637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int newDirection = y > mLastY ? 1 : -1; 2900637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2901637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection == 0) { 2902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 2903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection != newDirection) { 2906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Coming back to 'real' list scrolling 2907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell incrementalDeltaY = -newScroll; 2908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 2909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2910637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // No need to do all this work if we're not going to move anyway 2911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (incrementalDeltaY != 0) { 2912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 2913637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2915637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we are back in 2916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 2917637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2918637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2920637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // We did not scroll the full amount. Treat this essentially like the 2921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // start of a new touch scroll 2922637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionPosition = findClosestMotionRow(y); 2923637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2924637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = getChildAt(motionPosition - mFirstPosition); 2926637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = motionView.getTop(); 2927637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2928637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, -incrementalDeltaY, 0, mScrollY, 0, 0, 2932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2933637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2935637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 2937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 2938637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) -incrementalDeltaY / getHeight()); 2939637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 2940637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 2941637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2942637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 2943637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) -incrementalDeltaY / getHeight()); 2944637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 2945637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 2946637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2947637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2948637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2949637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2950637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 2951637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 2952637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 2953637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2954637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = y; 2956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 2957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 2994005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2995005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 2999079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 30046198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3009079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 3017005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3018005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3019079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3022005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3023005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3027079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 30306198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 30316198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3033637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3034637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 30376198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3038637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 30396198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 30406198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 30416198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 30426198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 30436198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3044637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 304521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 304621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3047637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3048637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3049637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3051637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3052637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3053637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 30566198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 30576198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 30586198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 30596198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 30604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 30616198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3062f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3063f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3064f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3065d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3066d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3067d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 30686198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 307479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3080637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3081637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3082637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3085637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3086637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3087637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3090637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3091637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 31030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 31231cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 31241cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 31251cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 31261cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3133637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.recycle(); 3159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker = null; 3160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 31684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 31694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 31704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 31724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 31734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 31744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 31754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 31764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 31774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 31784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 31794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 31804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 31814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 31824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 31834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell protected void onOverScrolled(int scrollX, int scrollY, 3192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean clampedX, boolean clampedY) { 3193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = scrollY; 3194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (clampedY) { 3196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Velocity is broken by hitting the limit; don't start a fling off of this. 3197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 3199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell awakenScrollBars(); 3202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3207637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3209637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3210637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 3211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int width = getWidth(); 3212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3213a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira canvas.translate(0, Math.min(0, scrollY + mFirstPositionDistanceGuess)); 3214a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 3216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 3222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int width = getWidth(); 3223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3225e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.translate(-width, Math.max(height, scrollY + mLastPositionDistanceGuess)); 3226e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3227a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 3229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3235637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3236637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3238637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3242637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 32520a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 32604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 326279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3263637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3265637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3266637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 32694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 32704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 32714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 327379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 32819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 328579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 32864b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 32874b4f40f84e72579417604143e5f42115769649b8Romain Guy } 32889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 32944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 32954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 33064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 33124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 33134cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 33144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 33214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 33224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 33234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 33244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 33254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 33264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 33274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 33284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 33294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 33304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3331637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 33324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 33334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 33344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 33354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 33720046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3394d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3395d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3396d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3397d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3399d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3400d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3401d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3402d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3403d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3404d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3405d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3406d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (scroller.isScrollingInDirection(0, yvel)) { 3407d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3408d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3409d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3410d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3411d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3412b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3413d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3414d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3415d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3416d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3417d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3418d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 341979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3420637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 342379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 34279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 34381cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 34391cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 34401cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3442458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3443637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3444637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3445637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3446637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3447637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3448637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3449637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3450637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3451637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3452637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3453637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 3454637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int min = mScrollY > 0 ? Integer.MIN_VALUE : 0; 3455637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int max = mScrollY > 0 ? 0 : Integer.MAX_VALUE; 3456637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, min, max, 0, getHeight()); 3457637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3472637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3473637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3474637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3475637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3476637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3477637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3478637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3479458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 3480458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3481458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 3482458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3483458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 3484458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3485458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3486458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3487d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 349079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3491d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 3492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 3493458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 3494458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 349521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 349621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 349721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3498d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 34995e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 35005e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 35015e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 35025e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 35035e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3504d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3505d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3506d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3507d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 351179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 351279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3513d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 35154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3516d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3517d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3518d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3519d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3520d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3521637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 352279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 352379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 352479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 352579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3527637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3528637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3529637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3531637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3532637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3533637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3535637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3536637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3537637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3538637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3539637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3540637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3542637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3543637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3544637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3545637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3546637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3547637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3549637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3550637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3551d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3552637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3553637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3554637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3555d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3556637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3557637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3558637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3559637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3560637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3561637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3562637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3563637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 3564637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 3565637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3566637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3567637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3568637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3570637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 3571637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3572637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell edgeReached(delta); 3573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3574637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3575637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3576637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 3577637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 3579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3580637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 3584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 3585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 3586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 3587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3588d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 3590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 3591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 3592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int deltaY = scroller.getCurrY() - scrollY; 3603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 3604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 3605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell startSpringback(); 3606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3620458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 36224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3623458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3627e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 36284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3629458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3630458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3632458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3633458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 363452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3635e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3636e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 36374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3638458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3639458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3640458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3642458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 3643458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3644458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 36454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36464bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 36474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (position <= firstPos) { 3648458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3649458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3651458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3653458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3654458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3655458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3656458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3658458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3659458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3663458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3664458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3665458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 36664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3667458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3668458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3670458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 3671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3674458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 36784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36794bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3680fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3682458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3684458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3685458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3691458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3694458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3695458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3696fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3698458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3699458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3703458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3705458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3707458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3709458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3710458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3711458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3713458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3714458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3715458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3724458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 37254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3728e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3729e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 3730322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 3731322171b333a1c796fcc1428a96ea1d854a3881faErik } 3732322171b333a1c796fcc1428a96ea1d854a3881faErik 3733322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 3734e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 3735e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 3736e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 3737e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 3738e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 3739e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3740e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 3741371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3742371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3743e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 37444bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3745e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3746e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 3747e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3748e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 3749e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3750e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3751e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3752322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 3753e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 3754e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3755e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3756371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 37574ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 3758322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3759322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 3760371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 3761234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3762e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3763e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3764e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3768e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3770371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3771371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 3772371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 3773371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3774458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 37764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3777458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3778458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3779458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3780458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 37814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 37830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 37840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3790458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3792458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3793458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3794458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3795458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3796029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3798029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3799458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3800458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3801458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 38027e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3803458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3804458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3805458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3806458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3808458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3809458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3810029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 38114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3812029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3813029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3814458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3816458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3817458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3818458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 3819458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3820458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3821458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3822458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3823458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3824458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 3825458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3826458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3827458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 38287e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3830458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3833458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3835458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 38364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 3837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3845458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3846458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3847458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3848458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3849458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3850458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 38510b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 38520b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 38530b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3855029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3857029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 3858458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3859458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 3860458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 38617e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 3862458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3863458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3865458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 3868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 3869458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 3870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3871458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3872458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 3873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3876458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3883458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 38857e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 3886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 3887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 3890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 3891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 3892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 3893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3895458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3898e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 3899234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 3900234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 3901234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 3902234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 3903234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 3904e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3905371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 3906234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3907234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 3908e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 3909371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3910e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3911e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3912371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(-getHeight(), mScrollDuration); 3913e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3914e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3915371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(getHeight(), mScrollDuration); 3916e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3917e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3918e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3919e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3920234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 3921234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 3922234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 3923e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3924e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 3925e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3926e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 3928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3933458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 39344bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 39354bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 39364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 39374bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 39384bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 39394bede9e425875542976a422222510fa4056a8339Romain Guy */ 39404bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 39414bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 39424bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 39434bede9e425875542976a422222510fa4056a8339Romain Guy } 39444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 39454bede9e425875542976a422222510fa4056a8339Romain Guy } 394621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 394721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 394821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 394921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 39504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 395121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 395221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 395321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 395421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 395521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 39564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39574bede9e425875542976a422222510fa4056a8339Romain Guy /** 3958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 3960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 3963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 3967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3968322171b333a1c796fcc1428a96ea1d854a3881faErik 3969322171b333a1c796fcc1428a96ea1d854a3881faErik /** 3970322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 3971322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 3972322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 3973322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 3974322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 3975322171b333a1c796fcc1428a96ea1d854a3881faErik * 3976322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 3977322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 3978322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 3979322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 3980322171b333a1c796fcc1428a96ea1d854a3881faErik */ 3981322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 3982322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 3983322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 3984322171b333a1c796fcc1428a96ea1d854a3881faErik } 3985322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 3986322171b333a1c796fcc1428a96ea1d854a3881faErik } 3987322171b333a1c796fcc1428a96ea1d854a3881faErik 3988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3989e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 3990e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 3991e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 3992e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 3993e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 3994e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 3995e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 3996e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 3997e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 3998e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 3999e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4000e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4001e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4002e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4003e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4004e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4005e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4006e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 40104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 4028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4031299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 4032299acb581205b6574bfa91824b1b887e265c4c40Marc Blank if (distance != 0) { 40330046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4034299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 40350046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell } else { 40360046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mFlingRunnable.endFling(); 4037299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4040499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4041499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4042499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4043499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4044499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4045499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4046499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4047499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4048499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4049499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4050499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4051499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4052499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4053499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4054499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4055499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4056499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4057499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4058499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4059499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4060499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4061499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4062499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4063499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4064499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4065499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4066499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4067499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4068499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4069499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4070499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4071499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4072499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4073499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4074499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4075499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 40769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 40809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 40856dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 40866dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 40876dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 40886dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 40896dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 40906dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 40916dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 40926dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 40936dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 40946dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 40956dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 40966dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 40976dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 40986dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 40996dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41016dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 41069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 41149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 41259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4141458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 41429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess = firstTop - mListPadding.top; 4146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess = lastBottom + mListPadding.bottom; 4151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0 && firstTop >= listPadding.top && incrementalDeltaY >= 0) { 4156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 4157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 4158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && 4162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell incrementalDeltaY <= 0) { 4163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 4164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 4165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 41699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4170029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4171029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4172029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4173029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 41749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4175458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 41779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4178458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4179458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 41809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 41828c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 41838c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 41848c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 41858c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4186458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4191458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4194079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4199458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 42009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 42058c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 42068c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 42078c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 42088c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4213458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4214458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4215458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4216458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4217458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4218079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4220458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4221458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4222458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4228458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4230458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 42319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4232458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4234458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 42359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4236458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4237458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 42389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4240458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4241458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 42449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4245458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 42489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4250029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 42512a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 42522a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4253079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4254079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4255079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4256079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4257079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4258079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 42592a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4260079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4261079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4262029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4263029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4264458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 42684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4269458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 42709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 42749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 42759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 42779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 42799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 42809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 42879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 42949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 42969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 42979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 42999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 43039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4304ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4305ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4306ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 4313079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 43219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 43249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 43259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 43269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 43364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 43379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4341637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4342637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4343637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4344637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4345637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4346637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4347637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4348637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4349637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4350637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4351637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4352637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4353637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4354637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4355637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4356637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 43639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 43649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 43689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 43709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 43729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 43759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 43769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 43779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 43839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 43919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 43959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 44019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 44029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 44039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 44049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 44059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 44069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 44099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 44109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 44119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 44129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 44139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 44149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 44169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 44179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 44189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 44199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 44219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 44229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 44239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 44269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 44279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 44289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 44299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 44309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 44349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 44359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 44369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 44399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 44529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 4460371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell removeCallbacks(mPositionScroller); 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 44649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 44679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 44699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 44719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 44739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 44759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 44789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 44799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 44809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 44819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44910785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4494da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 4495da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 4496da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 4497da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 4498da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 4499da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 45000785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 45010785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int listBottom = getBottom() - getPaddingBottom(); 45020785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 45030785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 45040785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mFirstPosition + childCount >= mOldItemCount && lastBottom <= listBottom) { 45050785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 45060785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 45070785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 45080785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 45090785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 45100785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 45110785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 45149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 45159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 45169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 45179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 45189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 45199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 45219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 45229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 45269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 45279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 45289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 45319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 45349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 45379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 45389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 45399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 45419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 45429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 45439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 45469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 45479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 45539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 45629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 45639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 45649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 45669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 45689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 45709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 45759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 45779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 45789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 45819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 45829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 45839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 45849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 45989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 46019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 46029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 4604079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 460843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 460943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 461043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 461143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 461243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 461343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 461443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 461543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 461643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 461743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 461843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 461943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 462043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 462143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 462243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 462324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 462443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 462543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4629d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 46379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 46399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 46414df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 4642b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 46459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4648b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 46499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 465224443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 4655b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 46759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 46769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 46789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 46819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 46829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 46849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 46859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 46869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 46879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 46889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 46969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 46989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 4724b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 47299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 47319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 47349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 47369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 47379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 47389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 474083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 47418d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 47428d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 47438d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 474483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 474583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 474683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 474783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 474883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 474983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 4755cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4759b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 4764105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 47689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4786b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 4787b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4788b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4789b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4790c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 4791c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 4792c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 4793c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 4794c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 47951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 47961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 47971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 47981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 47991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 48001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 48011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 48021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 48031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 48041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 48061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 48071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 48081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 48091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 48101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 48111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 48121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 48131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 48141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 48151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 48161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 48181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 48201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 48221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 48231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 48241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 48251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 48261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 48271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 48281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 48301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 48321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 48331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 48341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 4835c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 4836c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 4837b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 48380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4839b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 4840b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 4841b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 4842b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4843b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4844b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 4845b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 4846b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 48470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4848b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 48574df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 48584df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 4861b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 4862b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 4863b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 4864b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 4865b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 4866105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 4877d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 490924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 491443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 49231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 49301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 49311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 4934c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 49431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 49611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 49869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 50195be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 50205be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 50215be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 50225be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 50235be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 502852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 502952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 503052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 503152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 503252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 503352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 503452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 503552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 506213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 507713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 507813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 507913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 508013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 508113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 508213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 508313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 508413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 508513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 508613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 508713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 508813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 508913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 509013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 509113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 509252964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 509313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 509413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 509513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 509613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 509713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 509813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 509913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 510013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 510113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 510213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 510313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 510413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 510513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 510613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 510713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 510813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 510913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 511013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 511113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 511213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 511313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 511413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 511513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 511613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 511713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 511813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 511913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 512052964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 512113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 512213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 512313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 512413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 512552964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 512613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 512713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 512813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 512913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 513013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 513113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 513213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5133637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 514013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5141499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5142499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5143499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5144499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5145499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 51469b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 51479b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 51483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 51493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 51503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 51513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 51523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 51533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 51543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 51559b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 51569b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 51579b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5158499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5159499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5160499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5161499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5162499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5163499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5164499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterConnected() { 5165499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5166499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 5167499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5168499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5169499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5170499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5171499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5172499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5173499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5174499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter == mAdapter) { 5175499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = null; 5176499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(null); 5177499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5178499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5179499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5180499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5256f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5257f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5258f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5259f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5260f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5261f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5262f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5263f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5264f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5272bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 52739bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 52749bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 52759bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52784df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 52794df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 52804df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 52814df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 52824df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 52834df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5284bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 52854df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 52864df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 52870bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 52880bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 52890bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 52900bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 52910bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 52920bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 52930bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 52940bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 5295bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 52960bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 52970bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 5298079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 5299079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 5300079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 5301079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 5302079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 5303079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 5304079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5391f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 5392f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 5393f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 5394f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5395f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 5396f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 5397f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5398f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 5399f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 5400f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 5401f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 5402f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5403f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 5404f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 5405f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5406f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5407f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5408f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 54090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 54529c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 54549c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 54574df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5485079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 5489079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5500079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 55109b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 55119b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 55129b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5516079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = position; 5517079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5519a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5522a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 5541a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 5544079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 5545079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 5546079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55509b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 55529b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 55539b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 55549b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5561a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 5562079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 561452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 561552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 561652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 561752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 561852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 561952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 562052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 562152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 562252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 562352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 562452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 562552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 562652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 562752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 562852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 562952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 563052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 563152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 563252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 5633266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 563452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 563552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 563652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 563752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 563852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 563952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 564052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 564152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 564252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 564352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 564452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 564552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 564652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5648079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5649079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 5650079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 5651079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 5652079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 5653079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 5654079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 5655079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 5656079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 5657079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 5658079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 5659079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5660079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5661079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 5662079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5663079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 5664079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5665079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5667