AbsListView.java revision fb60386b46d0c6216c765c10bd33ac42ca780917
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 146799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 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(); 148299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 148399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 148499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 148599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 148699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 148799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1506a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1507a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 1508f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkState = mCheckStates; 1509f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkIdState = mCheckedIdStates; 15102614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1511f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1534079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1544f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1545f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1546f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1547f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1548f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1549f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1550f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1551f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15522614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 15532614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1554a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1555a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1556a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1557a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1558a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1563d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1564d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 15700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16050a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1634079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 1635079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16790b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 16800b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 17000b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 17010b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 17020b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1703637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1704637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1705637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1706637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 17070b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 17080b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 17090b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 17100b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1759da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1760da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1761da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1762da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1763da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int listBottom = getBottom() - getPaddingBottom(); 1764da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1765da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1766da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mOldItemCount && 1767da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1768da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1771d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1772d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1773d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1774d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1779f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1780f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1781f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1782f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1783f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1784f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1785f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 17862c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 17872c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 17882c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 17892c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1790f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1794637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1804d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1805d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1806d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1807d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1808d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1809d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1810d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1811d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1817d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1818d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1819d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 192221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 192321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 19244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 192721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 192821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 1948079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 195621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1957a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1958a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1974079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 1975079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 1976079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 1977079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1978079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 1981e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 1982e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 1983e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 1990079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelectorShowing) { 1991079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 1992079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 203320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 203420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 203520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 203620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 203720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 203820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 203920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 204020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 204120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 204220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 204320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 204420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 204520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 204620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 204720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 204820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 204920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 205020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 205120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 205220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 205320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 205420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 205520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 205620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 205720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2063d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2096079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2140079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2158df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2159df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2160df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2161df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2165079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2170ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2171ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2172ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2179df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2180df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2200079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2201079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2202079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2203079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2204079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2205079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2206079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2207079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2208079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2209079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2213079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22460a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2256e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2257e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2258e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2259e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2260e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2261e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 2268d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 2269d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 2270d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 227382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 227482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 227582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 22766a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 22776a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 22786a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 22796a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 22806a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 228182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22881f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 22891f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 22901f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 229121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 229221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 229321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 2297d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 2298d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 2299d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 2300d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 230282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 230382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 230482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 230582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 230682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 23071cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 23091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 23101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 23111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 23121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 23141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 23151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 23161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2327670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2328670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2329670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2330670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2331670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 2332458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2333458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 2334637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2336458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2337670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 234697566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 23920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2411005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2412005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2413005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2414005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2415005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 2416005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 24300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24678350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2469f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2470f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 2471f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode == null) { 2472f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 2473f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 2474f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2475f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // TODO Should we select the long pressed item if we were already in 2476f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selection mode? (i.e. treat it like an item click?) 2477f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2478f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2479f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2481f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2525df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2526df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2527df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2528df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2529df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2534dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2535dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2536dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2537df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2538dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2540dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 254245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 254345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 254445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 254545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2549dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2616079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2617079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 2657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2693637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2694637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 2695637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 2696637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 2697637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2698637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2699637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2700637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2701637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 2702637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2703637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2704637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2705637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2711dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2712dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2713dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2714dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2715dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2716dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27210a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 272382f3495b146b267f3786997752cef25310176349Romain Guy 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 2736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 2737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 2738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2740637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 2741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2746637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 2747637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2748637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 2749637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 2750637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 2751637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 2752637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 2753637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 2754637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 2755637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // click or a scroll. Assume it is a click until proven otherwise 2756637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 2757637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 2758637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 2759637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 2760637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2761637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 2762637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2763637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 2764637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // If we couldn't find a view to click on, but the down event was touching 2765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // the edge, we will bail out and try again. This allows the edge correcting 2766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // code in ViewRoot to try to find a nearby view to select 2767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return false; 2768637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 2771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 2772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 2773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 2776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 2777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27789d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 277979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 27809d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 2781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 2782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 2783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 2784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 2785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 2787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 2790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2791637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 27974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 27984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan == null) { 28171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick // If it's non-null, we're already in a scroll. 28181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 28191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 28201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2822110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2823110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2824110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2825110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2826110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2827110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2828110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2829110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 2830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2833a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 2834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionIndex; 2835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mMotionPosition >= 0) { 2836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = mMotionPosition - mFirstPosition; 2837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // If we don't have a motion position that we can reliably track, 2839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // pick something in the middle to make a best guess at things below. 2840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = getChildCount() / 2; 2841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2842637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2843637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionViewPrevTop = 0; 2844637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(motionIndex); 2845637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionViewPrevTop = motionView.getTop(); 2847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 28496198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2850458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 28516198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2852458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 28536198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2856637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = this.getChildAt(motionIndex); 2857637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check if the top of the motion view is where it is 2859637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // supposed to be 2860637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionViewRealTop = motionView.getTop(); 2861637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEdge) { 2862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Apply overscroll 2863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overscroll = -incrementalDeltaY - 2865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (motionViewRealTop - motionViewPrevTop); 2866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 2867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 2869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 2870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 2871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 2877637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = 0; // Reset when entering overscroll. 2878637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 2880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) overscroll / getHeight()); 2881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 2882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 2883637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 2885637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 2886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 2887637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 2888637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2889637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2890637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 289179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2892b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2893b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 289479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 289579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 289679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 289779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 2898637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2899637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 2900637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (y != mLastY) { 2901637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 2902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell deltaY -= mMotionCorrection; 2903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int oldScroll = mScrollY; 2906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int newScroll = oldScroll - incrementalDeltaY; 2907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int newDirection = y > mLastY ? 1 : -1; 2908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection == 0) { 2910637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 2911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2913637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection != newDirection) { 2914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Coming back to 'real' list scrolling 2915637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell incrementalDeltaY = -newScroll; 2916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 2917637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2918637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // No need to do all this work if we're not going to move anyway 2919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (incrementalDeltaY != 0) { 2920637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 2921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2922637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2923637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we are back in 2924637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 2925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2926637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2927637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2928637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // We did not scroll the full amount. Treat this essentially like the 2929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // start of a new touch scroll 2930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionPosition = findClosestMotionRow(y); 2931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2933637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = getChildAt(motionPosition - mFirstPosition); 2934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = motionView.getTop(); 2935637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2938637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2939637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, -incrementalDeltaY, 0, mScrollY, 0, 0, 2940637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2941637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2942637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2943637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2944637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 2945637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 2946637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) -incrementalDeltaY / getHeight()); 2947637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 2948637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 2949637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2950637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 2951637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) -incrementalDeltaY / getHeight()); 2952637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 2953637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 2954637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 2959637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 2960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 2961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2962637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2963637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = y; 2964637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 2965637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2966637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3002005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3003005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3007079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 30126198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3017079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 3025005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3026005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3027079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3030005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3031005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3035079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 30386198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 30396198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3040637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3041637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3042637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3043637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3044637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 30456198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3046637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 30476198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 30486198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 30496198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 30506198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 30516198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3052637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 305321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 305421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3060637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3061637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3063637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 30646198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 30656198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 30666198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 30676198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 30684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 30696198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3070f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3071f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3072f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3073d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3074d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3075d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 30766198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 308279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3085637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3086637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3087637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3090637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3091637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3092637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3093637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3094637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3107637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 31110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 31139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 31149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 31311cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 31321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 31331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 31341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.recycle(); 3167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker = null; 3168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 31764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 31774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 31784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 31804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 31814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 31824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 31834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 31844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 31854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 31864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 31874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 31884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 31894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 31904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 31914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell protected void onOverScrolled(int scrollX, int scrollY, 3200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean clampedX, boolean clampedY) { 3201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = scrollY; 3202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (clampedY) { 3204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Velocity is broken by hitting the limit; don't start a fling off of this. 3205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3206637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 3207637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3209637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell awakenScrollBars(); 3210637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 3219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int width = getWidth(); 3220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3221a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira canvas.translate(0, Math.min(0, scrollY + mFirstPositionDistanceGuess)); 3222a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 3224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3226637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3227637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 3230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int width = getWidth(); 3231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3233e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.translate(-width, Math.max(height, scrollY + mLastPositionDistanceGuess)); 3234e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3235a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3236637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 3237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3238637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3245637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3246637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3247637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3248637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3249637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3250637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3251637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3252637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 32600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 32684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 327079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3271637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3274637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 32774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 32784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 32794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 328179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 32879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 32889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 32899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 32909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 329379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 32944b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 32954b4f40f84e72579417604143e5f42115769649b8Romain Guy } 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 33024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 33034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 33144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 33204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 33214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 33224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 33294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 33304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 33314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 33324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 33334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 33344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 33354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 33364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 33374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 33384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3339637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 33404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 33414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 33424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 33434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 33800046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 33879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3395637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 33999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 34019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3402d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3403d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3404d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3405d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3406637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3407d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3408d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3409d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3410d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3411d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3412d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3413d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3414d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (scroller.isScrollingInDirection(0, yvel)) { 3415d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3416d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3417d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3418d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3419d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3420b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3421d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3422d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3423d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3424d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3425d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3426d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 342779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3428637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 343179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34451cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 34461cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 34471cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 34481cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3450458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3451637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3452637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3453637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3454637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3455637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3456637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3457637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 3462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int min = mScrollY > 0 ? Integer.MIN_VALUE : 0; 3463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int max = mScrollY > 0 ? 0 : Integer.MAX_VALUE; 3464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, min, max, 0, getHeight()); 3465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3472637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3473637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3474637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3475637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3476637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3477637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3478637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3487458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 3488458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 3490458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3491458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 3492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3493458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3494458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3495d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3497458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 349879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3499d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 3500458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 3501458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 3502458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 350321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 350421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 350521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3506d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 35075e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 35085e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 35095e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 35105e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 35115e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3512d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3513d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3514d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3515d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 351979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 352079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3521d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 35234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3524d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3525d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3526d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3527d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3528d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3529637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 353079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 353179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 353279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 353379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3535637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3536637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3537637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3540637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3541637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3543637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3544637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3545637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3546637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3547637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3548637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3550637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3551637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3552637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3553637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3554637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3555637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3557637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3558637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3559d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3560637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3561637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3562637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3563d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3564637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3565637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3566637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3567637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3568637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3570637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3571637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 3572637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 3573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3574637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3575637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3576637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3577637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 3579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35803cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 35813cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 35823cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 3583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 3587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 3589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 3594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 3595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 3596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 3597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3598d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 3600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 3611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int deltaY = scroller.getCurrY() - scrollY; 3613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 3614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 3615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell startSpringback(); 3616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36294e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3630458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 36324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3633458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3634458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3635458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3636458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3637e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 36384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3639458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3640458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3641458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3642458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3643458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 364452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3645e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3646e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 36474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3648458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3649458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 3653458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3654458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 36554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36564bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 36574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (position <= firstPos) { 3658458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3659458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3663458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3664458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3665458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3666458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3668458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3669458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3670458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3674458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 36764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3678458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3680458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 3681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3682458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3684458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3686458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 36884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36894bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3690fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3691458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3694458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3695458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3698458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3699458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3703458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3705458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3706fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3707458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3709458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3710458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3711458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3713458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3714458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3715458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3716458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3724458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3725458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3728458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3729458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3730458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3731458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3733458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3734458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 37354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3736458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3737458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3738e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3739e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 3740322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 3741322171b333a1c796fcc1428a96ea1d854a3881faErik } 3742322171b333a1c796fcc1428a96ea1d854a3881faErik 3743322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 3744e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 3745e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 3746e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 3747e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 3748e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 3749e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3750e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 3751371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3752371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3753e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 37544bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3755e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3756e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 3757e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3758e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 3759e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3760e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3761e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3762322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 3763e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 3764e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3765e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3766371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 37674ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 3768322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3769322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 3770371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 3771234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3772e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3773e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3774e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3777458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3778e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3779458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3780371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3781371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 3782371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 3783371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3784458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 37864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3790458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 37914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37920b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 37930b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 37940b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3795458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3796458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3798458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3799458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3800458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3801458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3802458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3803458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3804458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3805458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3806029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3807458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3808029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3809458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3810458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3811458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 38127e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3813458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3814458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3816458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3818458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3819458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3820029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 38214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3822029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3823029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3824458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3825458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3826458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3827458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 3829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3830458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3833458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 3835458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3836458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 38387e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3845458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 38464e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 3847458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3848458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3849458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3850458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3851458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3853458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3855458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3857458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3858458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3859458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3860458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 38610b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 38620b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 38630b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3865029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3866458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3867029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 3868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3869458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 3870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 38717e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 3872458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 3878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 3879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 3880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 3883458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3885458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 38957e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 3896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 3897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 3900458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 3901458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 3902458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 3903458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3904458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3908e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 3909234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 3910234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 3911234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 3912234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 3913234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 3914e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3915371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 3916234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3917234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 3918e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 3919371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3920e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3921e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3922371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(-getHeight(), mScrollDuration); 3923e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3924e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3925371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(getHeight(), mScrollDuration); 3926e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3927e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3928e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3929e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3930234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 3931234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 3932234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 3933e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3934e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 3935e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3936e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 3938458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 39444bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 39454bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 39464e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 39474bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 39484bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 39494bede9e425875542976a422222510fa4056a8339Romain Guy */ 39504bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 39514bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 39524bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 39534bede9e425875542976a422222510fa4056a8339Romain Guy } 39544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 39554bede9e425875542976a422222510fa4056a8339Romain Guy } 395621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 395721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 395821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 395921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 39604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 396121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 396221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 396321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 396421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 396521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 39664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39674bede9e425875542976a422222510fa4056a8339Romain Guy /** 3968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 3970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 3973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 3977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3978322171b333a1c796fcc1428a96ea1d854a3881faErik 3979322171b333a1c796fcc1428a96ea1d854a3881faErik /** 3980322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 3981322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 3982322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 3983322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 3984322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 3985322171b333a1c796fcc1428a96ea1d854a3881faErik * 3986322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 3987322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 3988322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 3989322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 3990322171b333a1c796fcc1428a96ea1d854a3881faErik */ 3991322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 3992322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 3993322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 3994322171b333a1c796fcc1428a96ea1d854a3881faErik } 3995322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 3996322171b333a1c796fcc1428a96ea1d854a3881faErik } 3997322171b333a1c796fcc1428a96ea1d854a3881faErik 3998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3999e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4000e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4001e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4002e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4003e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4004e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4005e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4006e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4007e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4008e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4009e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4010e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4011e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4012e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4013e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4014e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4015e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4016e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 40204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40314e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 4038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4040458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4041299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 4042299acb581205b6574bfa91824b1b887e265c4c40Marc Blank if (distance != 0) { 40430046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4044299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 40450046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell } else { 40460046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mFlingRunnable.endFling(); 4047299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4050499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4051499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4052499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4053499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4054499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4055499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4056499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4057499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4058499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4059499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4060499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4061499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4062499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4063499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4064499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4065499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4066499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4067499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4068499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4069499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4070499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4071499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4072499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4073499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4074499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4075499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4076499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4077499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4078499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4079499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4080499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4081499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4082499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4083499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4084499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4085499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 40899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 40956dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 40966dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 40976dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 40986dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 40996dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 41006dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 41016dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 41026dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 41036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 41046dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 41056dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 41066dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 41076dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 41086dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 41096dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41116dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 41129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4133bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4134bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4135bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4136bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4137bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4138bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4139bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4140bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4141bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4142bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4144bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4145bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 41469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 41479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 41499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 41509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 41519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 41539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 41569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 41579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 41599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 41629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4165bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4170bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0 && firstTop >= listPadding.top && incrementalDeltaY >= 0) { 4176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 4177458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 4178637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4179458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4181637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && 4182637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell incrementalDeltaY <= 0) { 4183458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 4184458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 4185637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4186458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 41899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4190029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4191029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4192029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4193029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 41949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 41979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4199458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 42009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4201458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 42028c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 42038c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 42048c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 42058c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4206458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4207458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4208458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4213458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4214079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4215458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4216458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4217458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4218458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4224458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 42258c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 42268c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 42278c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 42288c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4230458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4231458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4232458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4233458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4234458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4235458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4236458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4237458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4238079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4240458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4241458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4242458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 42449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4248458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 42519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 42539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4254458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 42559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 42589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4261458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 42689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4269458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4270029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 42712a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 42722a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4273079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4274079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4275079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4276079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4277079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4278079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 42792a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4280079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4281079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4282029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4283029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4284458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4285458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4286458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 4287458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 42884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4289458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 42949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 42979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 42999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 43049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 43059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 43109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 43219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4324ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4325ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4326ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 43279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 4333079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 43409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 43419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 43439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 43449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 43459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 43469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 43499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 43509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 43564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4361637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4362637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4363637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4364637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4365637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4366637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4367637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4368637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4370637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4371637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4372637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4373637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4374637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4375637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4376637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 43779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 43789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 43839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 43849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 43959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 44029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 44039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 44069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 44079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 44089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 44099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 44109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 44119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 44129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 44149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 44159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 44179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 44189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 44199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 44219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 44229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 44239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 44249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 44259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 44269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 44299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 44309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 44319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 44329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 44339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 44349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 44369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 44399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 44429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 44549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 44559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 44609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 44649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 44709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 44719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 44729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 44739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 44799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 4480371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell removeCallbacks(mPositionScroller); 44819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 44829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 45039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 45079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 45089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 45099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 45109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45110785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 45139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4514da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 4515da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 4516da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 4517da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 4518da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 4519da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 45200785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 45210785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int listBottom = getBottom() - getPaddingBottom(); 45220785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 45230785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 45240785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mFirstPosition + childCount >= mOldItemCount && lastBottom <= listBottom) { 45250785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 45260785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 45270785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 45280785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 45290785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 45300785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 45310785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 45349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 45359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 45379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 45389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 45399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 45409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 45419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 45429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 45469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 45479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 45509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 45539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 45599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 45619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 45629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 45639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 45669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 45739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 45759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 45769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 45829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 45839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 45849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 45869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 45879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 45889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 45989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 46019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 46029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 46049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 46109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 46119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 46219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 4624079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 462843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 462943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 463043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 463143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 463243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 463343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 463443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 463543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 463643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 463743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 463843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 463943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 464043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 464143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 464243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 464324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 464443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 464543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 46469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 46489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4649d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 46529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 46614df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 4662b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4668b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 467224443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 4675b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 46769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 46789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 46859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 46869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 46879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 46959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 46969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 46989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 47249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 47279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 47319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 47379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 47399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 47409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 47429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 4744b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 47459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 47499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 476083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 47618d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 47628d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 47638d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 476483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 476583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 476683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 476783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 476883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 476983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 4775cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 4784105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4806b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 4807b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4808b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4809b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4810c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 4811c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 4812c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 4813c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 4814c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 48151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 48161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 48171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 48181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 48191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 48201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 48211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 48221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 48231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 48241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 48261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 48271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 48281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 48291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 48301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 48311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 48321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 48331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 48341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 48351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 48361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 48381bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 48401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 48421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 48431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 48441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 48451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 48461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 48471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 48481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 48501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 48521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 48531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 48541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 4855c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 4856c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 4857b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 48580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4859b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 4860b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 4861b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 4862b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4863b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4864b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 4865b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 4866b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 48670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4868b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 48774df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 48784df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 4881b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 4882b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 4883b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 4884b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 4885b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 4886105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 4897d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 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 * Returns if the ListView currently has a text filter. 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 492924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 493443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 49431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 49501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 49511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 4954c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 49631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 49811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 50299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 50309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 50349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 50395be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 50405be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 50415be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 50425be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 50435be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 504852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 504952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 505052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 505152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 505252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 505352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 505452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 505552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 508213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 509713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 509813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 509913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 510013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 510113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 510213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 510313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 510413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 510513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 510613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 510713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 510813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 510913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 511013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 511113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 511252964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 511313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 511413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 511513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 511613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 511713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 511813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 511913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 512013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 512113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 512213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 512313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 512413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 512513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 512613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 512713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 512813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 512913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 513013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 513113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 513213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 513313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 513413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 513513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 513613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 513713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 513813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 513913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 514052964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 514113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 514213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 514313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 514413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 514552964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 514613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 514713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 514813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 514913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 515013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 515113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 515213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 516013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5161499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5162499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5163499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5164499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5165499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 51669b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 51679b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 51683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 51693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 51703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 51713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 51723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 51733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 51743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 51759b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 51769b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 51779b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5178499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5179499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5180499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5181499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5182499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5183499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5184499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterConnected() { 5185499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5186499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 5187fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5188fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 5189499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5190499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5191499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5192499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5193499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5194499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5195499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5196fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5197fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5198fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5199fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5200fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5201499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5202499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5203499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5256f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5257f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5258f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5259f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5260f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5261f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5262f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5263f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5264f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5265f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5266f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5267f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5268f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5269f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5270f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5271f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5272f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5273f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5274f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5275f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5276f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5277f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5278f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5279f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5280f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5281f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5282f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5283f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5284f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5285f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5286f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5287f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5295bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 52969bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 52979bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 52989bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53014df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 53024df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 53034df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 53044df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 53054df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 53064df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5307bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 53084df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 53094df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 53100bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 53110bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 53120bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 53130bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 53140bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 53150bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 53160bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 53170bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 5318bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 53190bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 53200bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 5321079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 5322079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 5323079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 5324079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 5325079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 5326079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 5327079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5414f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 5415f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 5416f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 5417f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5418f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 5419f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 5420f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5421f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 5422f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 5423f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 5424f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 5425f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5426f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 5427f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 5428f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5429f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5430f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5431f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 54320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 54759c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 54779c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 54804df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5508079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 5512079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5523079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 55339b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 55349b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 55359b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5539079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = position; 5540079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5542a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5545a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 5564a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 5567079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 5568079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 5569079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55739b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 55759b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 55769b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 55779b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5584a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 5585079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 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 pruneScrapViews(); 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 563752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 563852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 563952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 564052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 564152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 564252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 564352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 564452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 564552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 564652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 564752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 564852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 564952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 565052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 565152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 565252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 565352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 565452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 565552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 5656266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 565752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 565852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 565952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 566052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 566152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 566252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 566352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 566452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 566552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 566652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 566752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 566852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 566952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5671079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5672079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 5673079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 5674079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 5675079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 5676079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 5677079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 5678079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 5679079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 5680079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 5681079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 5682079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5683079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5684079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 5685079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5686079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 5687079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5688079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5690