AbsListView.java revision 2614c6c1f9fb19af21b901c16c443335bbc9d50b
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.TypedArray; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.text.TextUtils; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.Log; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.LongSparseArray; 3852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.SparseBooleanArray; 39f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.StateSet; 40f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 41079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.view.Gravity; 42f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.HapticFeedbackConstants; 43637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.KeyEvent; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Menu; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MenuItem; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 48f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.VelocityTracker; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.View; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ContextMenu.ContextMenuInfo; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.BaseInputConnection; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnection; 58b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnectionWrapper; 59b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Base class that can be used to implement virtualized lists of items. A list does 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not have a spatial definition here. For instance, subclases of this class can 67d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 68d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * 69d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @attr ref android.R.styleable#AbsListView_listSelector 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_choiceMode 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 80f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnTouchModeChangeListener, 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RemoteViewsAdapter.RemoteAdapterConnectionCallback { 84499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 85499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * are currently visible. 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setTranscriptMode(int) 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * Indicates the view is in the process of being flung 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Regular layout - usually an unsolicited layout from the view system 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int LAYOUT_NORMAL = 0; 143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Show the first item 146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int LAYOUT_FORCE_TOP = 1; 148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Force the selected item to be on somewhere on the screen 151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int LAYOUT_SET_SELECTION = 2; 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Normal list that does not indicate choices 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CHOICE_MODE_NONE = 0; 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list allows up to one choice 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CHOICE_MODE_SINGLE = 1; 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list allows multiple choices 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CHOICE_MODE_MULTIPLE = 2; 190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which IDs are currently checked 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> mCheckedIdStates; 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls how the next layout will happen 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mLayoutMode = LAYOUT_NORMAL; 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Should be used by subclasses to listen to changes in the dataset 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell AdapterDataSetObserver mDataSetObserver; 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The adapter containing the data to be displayed by this view 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ListAdapter mAdapter; 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The remote adapter containing the data to be displayed by this view to be set 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RemoteViewsAdapter mRemoteAdapter; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 256499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 257499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 258499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Set to true if we would like to have the selector showing itself. 259499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * We still need to draw and position it even if this is false. 260499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mSelectorShowing; 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The current position of the selector in the list. 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectorPosition = INVALID_POSITION; 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 271079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn Rect mSelectorRect = new Rect(); 272079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 273079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 274079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The data set used to store unused views that should be reused during the next layout 275079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * to avoid creating new ones 276079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 277079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final RecycleBin mRecycler = new RecycleBin(); 278079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 279079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 280079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The selection's left padding 281079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles scrolling between positions within the list. 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private PositionScroller mPositionScroller; 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * Indicates whether the list is stacked from the bottom edge or 389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * the top edge. 390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean mStackFromBottom; 392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy */ 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira private static final boolean PROFILE_FLINGING = false; 4600b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell private boolean mFlingProfilingStarted = false; 461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * The last CheckForLongPress runnable we posted, if any 464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private CheckForLongPress mPendingCheckForLongPress; 466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * The last CheckForTap runnable we posted, if any 469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private Runnable mPendingCheckForTap; 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4861cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private int mTranscriptMode; 4871cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 4881cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 4891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * Indicates that this list is always drawn on top of a solid, single-color, opaque 4901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * background 4911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 4921cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private int mCacheColorHint; 4931cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 4941cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mGlobalLayoutListenerAddedFilter; 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTouchSlop; 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private InputConnection mDefInputConnection; 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private InputConnectionWrapper mPublicInputConnection; 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mClearScrollingCache; 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mMinimumVelocity; 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mMaximumVelocity; 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mVelocityScale = 1.0f; 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean[] mIsScrap = new boolean[1]; 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // True when the popup should be hidden because of a call to 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // dispatchDisplayHint() 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mPopupHidden; 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ID of the active pointer. This is used to retain consistency during 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drags/flings if multiple pointers are used. 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mActivePointerId = INVALID_POINTER; 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sentinel value for no current active pointer. 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used by {@link #mActivePointerId}. 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int INVALID_POINTER = -1; 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 541d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Interface definition for a callback to be invoked when the list or grid 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 543d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn /** 5471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * The view is not scrolling. Note navigating the list using the trackball counts as 5486dfed24158b8fc9150abee23992db621cd82aa43Romain Guy * being in the idle state since these transitions are not animated. 5496dfed24158b8fc9150abee23992db621cd82aa43Romain Guy */ 5504296fc4d326447875c26a925f12b3935632f13bbRomain Guy public static int SCROLL_STATE_IDLE = 0; 5514296fc4d326447875c26a925f12b3935632f13bbRomain Guy 55221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 5534e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * The user is scrolling using touch, and their finger is still on the screen 55421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy */ 5554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira public static int SCROLL_STATE_TOUCH_SCROLL = 1; 55624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy 55724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy /** 55824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy * The user had previously been scrolling using touch and had performed a fling. The 5594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * animation is now coasting to a stop 5604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell public static int SCROLL_STATE_FLING = 2; 5624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 5634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Callback method to be invoked while the list view or grid view is being scrolled. If the 5654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view is being scrolled, this method will be called before the next frame of the scroll is 5664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * rendered. In particular, it will be called before any calls to 5674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * {@link Adapter#getView(int, View, ViewGroup)}. 5684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * 5694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @param view The view whose scroll state is being reported 5704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * 5716dfed24158b8fc9150abee23992db621cd82aa43Romain Guy * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 574637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void onScrollStateChanged(AbsListView view, int scrollState); 575637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 576637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 577637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Callback method to be invoked when the list or grid has been scrolled. This will be 578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * called after the scroll has completed 579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param view The view whose scroll state is being reported 580637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param firstVisibleItem the index of the first visible cell (ignore if 581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * visibleItemCount == 0) 582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param visibleItemCount the number of visible cells 583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param totalItemCount the number of items in the list adaptor 584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int totalItemCount); 587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * The top-level view of a list item can implement this interface to allow 591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * itself to modify the bounds of the selection shown for that item. 592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public interface SelectionBoundsAdjuster { 594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Called to allow the list item to adjust the bounds shown for 596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * its selection. 597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param bounds On call, this contains the bounds the list has 599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * selected for the item (that is the bounds of the entire view). The 600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * values can be modified as desired. 601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void adjustListItemSelectionBounds(Rect bounds); 603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public AbsListView(Context context) { 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super(context); 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell initAbsListView(); 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setVerticalScrollBarEnabled(true); 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell TypedArray a = context.obtainStyledAttributes(R.styleable.View); 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell initializeScrollbars(a); 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell a.recycle(); 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 615da13dbae6fe0619101433ac861da460b8be63a36Adam Powell public AbsListView(Context context, AttributeSet attrs) { 616da13dbae6fe0619101433ac861da460b8be63a36Adam Powell this(context, attrs, com.android.internal.R.attr.absListViewStyle); 617da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 618da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 619da13dbae6fe0619101433ac861da460b8be63a36Adam Powell public AbsListView(Context context, AttributeSet attrs, int defStyle) { 620da13dbae6fe0619101433ac861da460b8be63a36Adam Powell super(context, attrs, defStyle); 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int adapterId = a.getResourceId(R.styleable.AbsListView_adapter, 0); 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapterId != 0) { 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Context c = context; 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(new Runnable() { 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setAdapter(Adapters.loadAdapter(c, adapterId)); 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }); 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 669e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 670e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 671e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn private void initAbsListView() { 672e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn // Setting focusable in touch mode will set the focusable property to true 673e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn setClickable(true); 674e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn setFocusableInTouchMode(true); 675e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn setWillNotDraw(false); 676e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn setAlwaysDrawnWithCacheEnabled(false); 677e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn setScrollingCacheEnabled(true); 678e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 679e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn final ViewConfiguration configuration = ViewConfiguration.get(mContext); 680e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn mTouchSlop = configuration.getScaledTouchSlop(); 681e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 682e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 683e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn mDensityScale = getContext().getResources().getDisplayMetrics().density; 684e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setAdapter(ListAdapter adapter) { 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter != null) { 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCheckedIdStates == null) { 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCheckedIdStates = new LongSparseArray<Boolean>(); 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCheckStates != null) { 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCheckStates.clear(); 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCheckedIdStates != null) { 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCheckedIdStates.clear(); 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of items currently selected. This will only be valid 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * <p>To determine the specific items that are currently selected, use one of 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the <code>getChecked*</code> methods. 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of items currently selected 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getCheckedItemPosition() 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getCheckedItemPositions() 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getCheckedItemIds() 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCheckedItemCount() { 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCheckedItemCount; 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the checked state of the specified position. The result is only 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * or {@link #CHOICE_MODE_MULTIPLE}. 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @param position The item whose checked state to return 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The item's checked state or <code>false</code> if choice mode 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is invalid 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setChoiceMode(int) 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira public boolean isItemChecked(int position) { 73630346c4399af45b46996f504004796177b975349Romain Guy if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 73730346c4399af45b46996f504004796177b975349Romain Guy return mCheckStates.get(position); 73830346c4399af45b46996f504004796177b975349Romain Guy } 73930346c4399af45b46996f504004796177b975349Romain Guy 74030346c4399af45b46996f504004796177b975349Romain Guy return false; 74130346c4399af45b46996f504004796177b975349Romain Guy } 74230346c4399af45b46996f504004796177b975349Romain Guy 74330346c4399af45b46996f504004796177b975349Romain Guy /** 74430346c4399af45b46996f504004796177b975349Romain Guy * Returns the currently checked item. The result is only valid if the choice 745d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * mode has been set to {@link #CHOICE_MODE_SINGLE}. 746f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 74720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return The position of the currently checked item or 74820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * {@link #INVALID_POSITION} if nothing is selected 749f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setChoiceMode(int) 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCheckedItemPosition() { 753d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 754d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mCheckStates.keyAt(0); 755df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 756d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 757d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return INVALID_POSITION; 758d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 759d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 760d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 7614296fc4d326447875c26a925f12b3935632f13bbRomain Guy * Returns the set of checked items in the list. The result is only valid if 7624296fc4d326447875c26a925f12b3935632f13bbRomain Guy * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 7634296fc4d326447875c26a925f12b3935632f13bbRomain Guy * 7644296fc4d326447875c26a925f12b3935632f13bbRomain Guy * @return A SparseBooleanArray which will return true for each call to 765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * get(int position) where position is a position in the list, 766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * or <code>null</code> if the choice mode is set to 767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * {@link #CHOICE_MODE_NONE}. 768d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 769d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy public SparseBooleanArray getCheckedItemPositions() { 7700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (mChoiceMode != CHOICE_MODE_NONE) { 771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return mCheckStates; 772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return null; 774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 7754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 7764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira /** 777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Returns the set of checked items ids. The result is only valid if the 778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 7794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 7804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return A new array which contains the id of each checked item in the 782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * list. 783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public long[] getCheckedItemIds() { 785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return new long[0]; 787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 789d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final LongSparseArray<Boolean> idStates = mCheckedIdStates; 790f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 791f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 792f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 793f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 796f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 798f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 799f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 800f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 801f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean dispatchItemClick = true; 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell dispatchItemClick = false; 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (dispatchItemClick) { 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled |= super.performItemClick(view, position, id); 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 990bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Enables fast scrolling by letting the user quickly scroll through lists by 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * dragging the fast scroll thumb. The adapter attached to the list may want 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * jump between sections of the list. 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see SectionIndexer 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #isFastScrollEnabled() 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param enabled whether or not to enable fast scrolling 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setFastScrollEnabled(boolean enabled) { 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mFastScrollEnabled = enabled; 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (enabled) { 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mFastScroller == null) { 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mFastScroller = new FastScroller(getContext(), this); 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mFastScroller != null) { 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mFastScroller.stop(); 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mFastScroller = null; 1014bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the current state of the fast scroll feature. 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setFastScrollEnabled(boolean) 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return true if fast scroll is enabled, false otherwise 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @ViewDebug.ExportedProperty 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isFastScrollEnabled() { 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mFastScrollEnabled; 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * If fast scroll is visible, then don't draw the vertical scrollbar. 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @hide 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell protected boolean isVerticalScrollBarHidden() { 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mFastScroller != null && mFastScroller.isVisible(); 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1036bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell 1037bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell /** 1038bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is computed based on the number of visible pixels in the visible items. This 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * however assumes that all list items have the same height. If you use a list in 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * which items have different heights, the scrollbar will change appearance as the 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * user scrolls through the list. To avoid this issue, you need to disable this 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * property. 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is based solely on the number of items in the adapter and the position of the 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * visible items inside the adapter. This provides a stable scrollbar as the user 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * navigates through a list of items with varying heights. 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param enabled Whether or not to enable smooth scrollbar. 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setSmoothScrollbarEnabled(boolean) 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_smoothScrollbar 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setSmoothScrollbarEnabled(boolean enabled) { 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mSmoothScrollbarEnabled = enabled; 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the current state of the fast scroll feature. 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return True if smooth scrollbar is enabled is enabled, false otherwise. 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setSmoothScrollbarEnabled(boolean) 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @ViewDebug.ExportedProperty 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isSmoothScrollbarEnabled() { 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mSmoothScrollbarEnabled; 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set the listener that will receive notifications every time the list scrolls. 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param l the scroll listener 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setOnScrollListener(OnScrollListener l) { 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mOnScrollListener = l; 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell invokeOnItemScrollListener(); 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Notify our scroll listener (if there is one) of a change in scroll state 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell void invokeOnItemScrollListener() { 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mFastScroller != null) { 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mOnScrollListener != null) { 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Indicates whether the children's drawing cache is used during a scroll. 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * By default, the drawing cache is enabled but this will consume more memory. 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return true if the scrolling cache is enabled, false otherwise 1098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @see #setScrollingCacheEnabled(boolean) 1100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @see View#setDrawingCacheEnabled(boolean) 1101637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @ViewDebug.ExportedProperty 1103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public boolean isScrollingCacheEnabled() { 1104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return mScrollingCacheEnabled; 1105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1107637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Enables or disables the children's drawing cache during a scroll. 1109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * By default, the drawing cache is enabled but this will use more memory. 1110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 11110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * When the scrolling cache is enabled, the caches are kept after the 11120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * first scrolling. You can manually clear the cache by calling 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 11140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 11320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 113420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 113520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see Filterable 113620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 113720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setTextFilterEnabled(boolean textFilterEnabled) { 113820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mTextFilterEnabled = textFilterEnabled; 113920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 114020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 114120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 114220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Indicates whether type filtering is enabled for this view 114320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 114420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if type filtering is enabled, false otherwise 114520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 114620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setTextFilterEnabled(boolean) 114720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see Filterable 114820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 114920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @ViewDebug.ExportedProperty 115020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isTextFilterEnabled() { 115120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mTextFilterEnabled; 115220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 115320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 115520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void getFocusedRect(Rect r) { 115620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell View view = getSelectedView(); 115720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (view != null && view.getParent() == this) { 115820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell // the focused rectangle of the selected view offset into the 115920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell // coordinate space of this view. 116020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell view.getFocusedRect(r); 116120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell offsetDescendantRectToMyCoords(view, r); 116220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } else { 116320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell // otherwise, just the norm 116420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.getFocusedRect(r); 116520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 116620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 116720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 116820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell private void useDefaultSelector() { 116920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setSelector(getResources().getDrawable( 117016bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell com.android.internal.R.drawable.list_selector_background)); 117120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 117320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 117420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Indicates whether the content of this view is pinned to, or stacked from, 117520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * the bottom edge. 117620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * When stack from bottom is set to true, the list fills its content starting from 118620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * the bottom of the view. 118720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 118820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param stackFromBottom true to pin the view's content to the bottom edge, 118920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * false to pin the view's content to the top edge 119020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 119120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setStackFromBottom(boolean stackFromBottom) { 119220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mStackFromBottom != stackFromBottom) { 119320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mStackFromBottom = stackFromBottom; 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int checkedItemCount; 12140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy SparseBooleanArray checkState; 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LongSparseArray<Boolean> checkIdState; 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Constructor called from {@link AbsListView#onSaveInstanceState()} 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkedItemCount = in.readInt(); 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkState = in.readSparseBooleanArray(); 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long[] idState = in.createLongArray(); 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (idState.length > 0) { 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkIdState = new LongSparseArray<Boolean>(); 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkIdState.setValues(idState, Boolean.TRUE); 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(checkedItemCount); 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeSparseBooleanArray(checkState); 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " filter=" + filter 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " checkState=" + checkState + "}"; 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * popups, but there don't seem to be any other useful hooks 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 13236bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (mFiltered) { 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.checkState = mCheckStates; 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.checkIdState = mCheckedIdStates; 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.checkedItemCount = mCheckedItemCount; 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorPosition = INVALID_POSITION; 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.checkState != null) { 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCheckStates = ss.checkState; 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.checkIdState != null) { 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCheckedIdStates = ss.checkIdState; 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCheckedItemCount = ss.checkedItemCount; 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1379a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell requestLayout(); 13802614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell } 1381f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1382f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private boolean acceptFilter() { 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled && getAdapter() instanceof Filterable && 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((Filterable) getAdapter()).getFilter() != null; 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 1402a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell // if mPopup is non-null, then onTextChanged will do the filtering 14032614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell if (mPopup == null) { 1404f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell Filter f = ((Filterable) mAdapter).getFilter(); 1405f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell f.filter(filterText); 1406f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1407f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Set filtered to true so we will display the filter window when our main 1408f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // window is ready 1409f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mFiltered = true; 1410f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataSetObserver.clearSavedState(); 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the list's text filter, if available. 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 1422a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 14232614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell return null; 1424f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1425f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 1437f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell super.requestLayout(); 1438f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorShowing = false; 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorPosition = INVALID_POSITION; 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 1457f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy invalidate(); 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return Math.max(firstPosition * 100 - (top * 100) / height + 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1502a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } else { 1503a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell int index; 1504f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = mItemCount; 1505f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (firstPosition == 0) { 15062614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell index = 0; 1507f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (firstPosition + childCount == count) { 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int result; 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result = Math.max(mItemCount * 100, 0); 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result = mItemCount; 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return result; 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1530079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn protected float getTopFadingEdgeStrength() { 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1540f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int top = getChildAt(0).getTop(); 1541f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final float fadeLength = (float) getVerticalFadingEdgeLength(); 1542f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 1543f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1544f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1545f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1546f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1547f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell protected float getBottomFadingEdgeStrength() { 15482614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell final int count = getChildCount(); 15492614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell final float fadeEdge = super.getBottomFadingEdgeStrength(); 1550a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (count == 0) { 1551a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell return fadeEdge; 1552a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } else { 1553a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (mFirstPosition + count - 1 < mItemCount - 1) { 1554a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell return 1.0f; 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 1559d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final float fadeLength = (float) getVerticalFadingEdgeLength(); 1560d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return bottom > height - mPaddingBottom ? 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15660a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses should NOT override this method but 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #layoutChildren()} instead. 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (changed) { 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(i).forceLayout(); 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.markChildrenDirty(); 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy protected boolean setFrame(int left, int top, int right, int bottom) { 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (changed) { 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reposition the popup when the frame has changed. This includes 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // translating the widget, not just changing its dimension. The 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // filter popup needs to follow the widget. 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean visible = getWindowVisibility() == View.VISIBLE; 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionPopup(); 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must override this method to layout their children. 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 1630079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!canScrollUp) { 1631079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (getChildCount() > 0) { 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16750b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell public int getListPaddingTop() { 16760b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return mListPadding.top; 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16960b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell * 16970b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell * @return The left list padding. 16980b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell */ 1699637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public int getListPaddingLeft() { 1700637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return mListPadding.left; 1701637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1702637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 17030b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 17040b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell * List padding is the maximum of the normal view's padding and the padding of the selector. 17050b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell * 17060b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell * @see android.view.View#getPaddingRight() 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param isScrap Array of at least 1 boolean, the first entry will become true if 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the returned view was taken from the scrap heap, false if otherwise. 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View obtainView(int position, boolean[] isScrap) { 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project isScrap[0] = false; 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(scrapView, position); 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 1755da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 1756da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else { 1757da13dbae6fe0619101433ac861da460b8be63a36Adam Powell isScrap[0] = true; 1758da13dbae6fe0619101433ac861da460b8be63a36Adam Powell child.dispatchFinishTemporaryDetach(); 1759da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 1760da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else { 1761da13dbae6fe0619101433ac861da460b8be63a36Adam Powell child = mAdapter.getView(position, null, this); 1762da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mCacheColorHint != 0) { 1763da13dbae6fe0619101433ac861da460b8be63a36Adam Powell child.setDrawingCacheBackgroundColor(mCacheColorHint); 1764da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 1767d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy position, getChildCount()); 1768d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 1769d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 1770d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void positionSelector(int position, View sel) { 1775f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (position != INVALID_POSITION) { 1776f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mSelectorPosition = position; 1777f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1778f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 1779f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final Rect selectorRect = mSelectorRect; 1780f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 1781f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (sel instanceof SelectionBoundsAdjuster) { 1782f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 1785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell selectorRect.bottom); 1786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectorShowing) { 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1796d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void positionSelector(int l, int t, int r, int b) { 1797d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 1798d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy + mSelectionRightPadding, b + mSelectionBottomPadding); 1799d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 1800d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 1801d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy @Override 1802d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy protected void dispatchDraw(Canvas canvas) { 1803d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy int saveCount = 0; 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 1809d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 1810d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy scrollX + mRight - mLeft - mPaddingRight, 1811d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy scrollY + mBottom - mTop - mPaddingBottom); 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mSelectorRect.isEmpty()) { 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 191421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy sel.setCallback(this); 191521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy updateSelectorState(); 19164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 191921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 192021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * selection in the list. 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isEnabled() || !isClickable()) { 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 1940079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v.hasFocusable()) return; 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(true); 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 194821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy setPressed(true); 1949a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy 1950a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy final boolean longClickable = isLongClickable(); 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition( 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewConfiguration.getLongPressTimeout()); 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 1966079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1967079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1968079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1969079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 1970079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn public void setScrollIndicators(View up, View down) { 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 1973e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 1974e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 1975e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn void updateSelectorState() { 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (shouldShowSelector()) { 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setState(getDrawableState()); 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setState(StateSet.NOTHING); 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1982079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1983079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1984079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project updateSelectorState(); 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 202520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 202620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean verifyDrawable(Drawable dr) { 202720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mSelector == dr || super.verifyDrawable(dr); 202820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 202920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 203020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 203120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void jumpDrawablesToCurrentState() { 203220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.jumpDrawablesToCurrentState(); 203320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mSelector != null) mSelector.jumpToCurrentState(); 203420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 203520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 203620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 203720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected void onAttachedToWindow() { 203820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.onAttachedToWindow(); 203920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 204020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell final ViewTreeObserver treeObserver = getViewTreeObserver(); 204120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (treeObserver != null) { 204220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell treeObserver.addOnTouchModeChangeListener(this); 204320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 204420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell treeObserver.addOnGlobalLayoutListener(this); 204520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 204620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 204720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 204820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mAdapter != null && mDataSetObserver == null) { 204920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mDataSetObserver = new AdapterDataSetObserver(); 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAdapter.registerDataSetObserver(mDataSetObserver); 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Data may have changed while we were detached. Refresh. 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldItemCount = mItemCount; 2055d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mItemCount = mAdapter.getCount(); 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Dismiss the popup in case onSaveInstanceState() was not invoked 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Detach any view left in the scrap heap 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.clear(); 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mPopup != null) { 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeGlobalOnLayoutListener(this); 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGlobalLayoutListenerAddedFilter = false; 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null) { 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAdapter.unregisterDataSetObserver(mDataSetObserver); 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver = null; 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2088079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFlingRunnable != null) { 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // let the fling runnable report it's new state which 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // should be idle 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingRunnable.endFling(); 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollY != 0) { 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollY = 0; 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered && !mPopupHidden) { 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 2132079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2150df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy * A base class for Runnables that will check that their view is still attached to 2151df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy * the original window as when the Runnable was created. 2152df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy * 2153df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy */ 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2157079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn public void rememberWindowAttachCount() { 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2161ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project public boolean sameWindow() { 2162ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 2163ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 2164ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 2171df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy // The data has changed since we posted this action in the event queue, 2172df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy // bail out before bad things happen 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mClickMotionPosition; 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter != null && mItemCount > 0 && 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionPosition != INVALID_POSITION && 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionPosition < adapter.getCount() && sameWindow()) { 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 2192079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 2193079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn boolean handled = false; 2194079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (sameWindow() && !mDataChanged) { 2195079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn handled = performLongPress(child, longPressPosition, longPressId); 2196079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2197079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (handled) { 2198079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 2199079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn setPressed(false); 2200079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn child.setPressed(false); 2201079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2205079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean performLongPress(final View child, 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mChoiceActionMode == null) { 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setItemChecked(longPressPosition, true); 22380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO Should we select the long pressed item if we were already in 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // selection mode? (i.e. treat it like an item click?) 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 2248e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn longPressPosition, longPressId); 2249e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2250e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (!handled) { 2251e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 2252e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn handled = super.showContextMenuForChild(AbsListView.this); 2253e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2260d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy @Override 2261d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy protected ContextMenuInfo getContextMenuInfo() { 2262d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mContextMenuInfo; 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 226582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy @Override 226682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy public boolean showContextMenuForChild(View originalView) { 226782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy final int longPressPosition = getPositionForView(originalView); 22686a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell if (longPressPosition >= 0) { 22696a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell final long longPressId = mAdapter.getItemId(longPressPosition); 22706a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell boolean handled = false; 22716a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 22726a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell if (mOnItemLongClickListener != null) { 227382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 22801f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy handled = super.showContextMenuForChild(originalView); 22811f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy } 22821f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 228321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy return handled; 228421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } 228521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy return false; 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2289d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2290d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return false; 2291d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 2292d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 229482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy public boolean onKeyUp(int keyCode, KeyEvent event) { 229582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy switch (keyCode) { 229682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy case KeyEvent.KEYCODE_DPAD_CENTER: 229782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy case KeyEvent.KEYCODE_ENTER: 229882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (!isEnabled()) { 22991cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick return true; 23001cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 23011cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (isClickable() && isPressed() && 23021cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mSelectedPosition >= 0 && mAdapter != null && 23031cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mSelectedPosition < mAdapter.getCount()) { 23041cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23051cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick final View view = getChildAt(mSelectedPosition - mFirstPosition); 23061cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (view != null) { 23071cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick performItemClick(view, mSelectedPosition, mSelectedRowId); 23081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick view.setPressed(false); 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2319670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner protected void dispatchSetPressed(boolean pressed) { 2320670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // Don't dispatch setPressed to our children. We call setPressed on ourselves to 2321670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // get the selector in the right state, but we don't want to press each child. 2322670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 2323670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner 2324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 2325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Maps a point to a position in the list. 2326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 2327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param x X in local coordinate 2328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param y Y in local coordinate 2329670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner * @return The position of the item which contains the specified point, or 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 233897566043afdb714fd4eea6bb22898964e95f16bcAdam Powell 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(mMotionPosition, child); 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 23840a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy final boolean longClickable = isLongClickable(); 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 23880a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (d != null && d instanceof TransitionDrawable) { 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 23930a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 2403005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 2404005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_DONE_WAITING; 2405005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } 2406005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 2407005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_DONE_WAITING; 2408005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (distance > mTouchSlop) { 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_SCROLL; 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 24220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy final Handler handler = getHandler(); 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 24350a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy // Time to start stealing events! Once we've stolen them, don't let anyone 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24598350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell @Override 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2461f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!isEnabled()) { 2462f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // A disabled view that is clickable still consumes the touch 2463f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // events, it just doesn't respond to them. 2464f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return isClickable() || isLongClickable(); 2465f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2466f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 2467f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mFastScroller != null) { 2468f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean intercepted = mFastScroller.onTouchEvent(ev); 2469f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (intercepted) { 2470f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2471f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2473f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action & MotionEvent.ACTION_MASK) { 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActivePointerId = ev.getPointerId(0); 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int x = (int) ev.getX(); 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int y = (int) ev.getY(); 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = pointToPosition(x, y); 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && (getAdapter().isEnabled(motionPosition))) { 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). It might be a 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // click or a scroll. Assume it is a click until proven otherwise 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME Debounce 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForTap == null) { 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap = new CheckForTap(); 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we couldn't find a view to click on, but the down event was touching 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the edge, we will bail out and try again. This allows the edge correcting 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // code in ViewRoot to try to find a nearby view to select 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_FLING) { 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Stopped a fling. It is a scroll. 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_SCROLL; 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = 0; 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionPosition = findMotionRow(y); 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2517df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2518df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2519df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2520df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (motionPosition >= 0) { 2521df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy // Remember where the motion event started 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 2526dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mMotionY = y; 2527dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mMotionPosition = motionPosition; 2528dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mLastY = Integer.MIN_VALUE; 2529df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy break; 2530dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2532dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy case MotionEvent.ACTION_MOVE: { 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int pointerIndex = ev.findPointerIndex(mActivePointerId); 253445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy final int y = (int) ev.getY(pointerIndex); 253545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy deltaY = y - mMotionY; 253645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy switch (mTouchMode) { 253745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy case TOUCH_MODE_DOWN: 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 2541dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // scroll than a tap 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We may be here after stopping a fling and continuing to scroll. 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If so, we haven't disallowed intercepting touch events yet. 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure that we do so in case we're in a parent that can intercept. 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Math.abs(deltaY) > mTouchSlop) { 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // No need to do all this work if we're not going to move anyway 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean atEdge = false; 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY != 0) { 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (atEdge && getChildCount() > 0) { 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Treat this like we're starting a new scroll from the current 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // position. This will let the user start scrolling back into 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // content immediately rather than needing to scroll back to the 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // point where they hit the limit first. 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionPosition >= 0) { 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View motionView = getChildAt(motionPosition - mFirstPosition); 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = motionView.getTop(); 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = y; 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2608079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 2609079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.PerformClick performClick = mPerformClick; 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(mMotionPosition, child); 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26350a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 2646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project updateSelectorState(); 2649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project updateSelectorState(); 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount > 0) { 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition == 0 && getChildAt(0).getTop() >= mListPadding.top && 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition + childCount < mItemCount && 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(childCount - 1).getBottom() <= 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getHeight() - mListPadding.bottom) { 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final VelocityTracker velocityTracker = mVelocityTracker; 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int initialVelocity = (int) 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (Math.abs(initialVelocity) > mMinimumVelocity) { 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFlingRunnable == null) { 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingRunnable = new FlingRunnable(); 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingRunnable.start(-initialVelocity); 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2685637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2686637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 2687637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 2688637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2689637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2690637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2691637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2692637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 2693637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2694637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Need to redraw since we probably aren't drawing the selector anymore 2695637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2696637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2697637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 2703dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mVelocityTracker.recycle(); 2704dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mVelocityTracker = null; 2705dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2706dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 2707dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mActivePointerId = INVALID_POINTER; 2708dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 27130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 271582f3495b146b267f3786997752cef25310176349Romain Guy break; 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 27264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 2728637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 2729637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 2730637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2731637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 2733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.recycle(); 2734637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker = null; 2735637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActivePointerId = INVALID_POINTER; 2738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2740637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case MotionEvent.ACTION_POINTER_UP: { 2742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell onSecondaryPointerUp(ev); 2743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = mMotionX; 2744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = mMotionY; 2745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionPosition = pointToPosition(x, y); 2746637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 2747637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 2748637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 2749637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 2750637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2751637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2752637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = y; 2753637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2754637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2755637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2756637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2757637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 2758637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2759637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2760637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 2761637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void draw(Canvas canvas) { 2762637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.draw(canvas); 2763637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFastScroller != null) { 2764637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 2765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2768637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 2769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public boolean onInterceptTouchEvent(MotionEvent ev) { 27709d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell int action = ev.getAction(); 277179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell View v; 27729d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 2773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFastScroller != null) { 2774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 2775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (intercepted) { 2776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 2777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (action & MotionEvent.ACTION_MASK) { 2781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case MotionEvent.ACTION_DOWN: { 2782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 2783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int x = (int) ev.getX(); 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int y = (int) ev.getY(); 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActivePointerId = ev.getPointerId(0); 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 27894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 27904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // User clicked on an actual view (and was not stopping a fling). 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_FLING) { 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 28081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick switch (mTouchMode) { 28091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick case TOUCH_MODE_DOWN: 28101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick final int pointerIndex = ev.findPointerIndex(mActivePointerId); 28111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick final int y = (int) ev.getY(pointerIndex); 28121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (startScrollIfNeeded(y - mMotionY)) { 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2814110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2815110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell break; 2816110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2817110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell break; 2818110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2819110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 2820110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell case MotionEvent.ACTION_UP: { 2821110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell mTouchMode = TOUCH_MODE_REST; 2822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = INVALID_POINTER; 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 2825a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 2826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case MotionEvent.ACTION_POINTER_UP: { 2828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell onSecondaryPointerUp(ev); 2829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return false; 2834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 2837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 2838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 2839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 2840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (pointerId == mActivePointerId) { 28416198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // This was our active pointer going up. Choose a new 2842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // active pointer and adjust accordingly. 28436198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // TODO: Make this decision more intelligent. 2844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 28456198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mMotionX = (int) ev.getX(newPointerIndex); 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = (int) ev.getY(newPointerIndex); 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActivePointerId = ev.getPointerId(newPointerIndex); 2848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 2849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 2850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 2855637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * {@inheritDoc} 2856637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 2857637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 2858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void addTouchables(ArrayList<View> views) { 2859637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int count = getChildCount(); 2860637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstPosition = mFirstPosition; 2861637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final ListAdapter adapter = mAdapter; 2862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (adapter == null) { 2864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 2865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell for (int i = 0; i < count; i++) { 2868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View child = getChildAt(i); 2869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (adapter.isEnabled(firstPosition + i)) { 2870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell views.add(child); 2871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell child.addTouchables(views); 2873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 2877637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Fires an "on scroll state changed" event to the registered 2878637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 2879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * is fired only if the specified state is different from the previously known state. 2880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 2881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param newState The new scroll state. 2882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 288379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void reportScrollStateChange(int newState) { 2884b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (newState != mLastScrollState) { 2885b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (mOnScrollListener != null) { 288679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 288779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastScrollState = newState; 288879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 288979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2890637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2891637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2892637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 2893637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Responsible for fling behavior. Use {@link #start(int)} to 2894637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * initiate a fling. Each frame of the fling is handled in {@link #run()}. 2895637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * A FlingRunnable will keep re-posting itself until the fling is done. 2896637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 2897637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 2898637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private class FlingRunnable implements Runnable { 2899637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 2900637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the decay of a fling scroll 2901637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 2902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final Scroller mScroller; 2903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 2905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Y value reported by mScroller on the previous fling 2906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 2907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastFlingY; 2908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell FlingRunnable() { 2910637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new Scroller(getContext()); 2911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2913637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void start(int initialVelocity) { 2914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 2915637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = initialY; 2916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.fling(0, initialY, 0, initialVelocity, 2917637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 2918637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_FLING; 2919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 2920637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 2922637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mFlingProfilingStarted) { 2923637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.startMethodTracing("AbsListViewFling"); 2924637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = true; 2925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2926637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2927637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2928637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startScroll(int distance, int duration) { 2930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 2931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = initialY; 2932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 2933637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_FLING; 2934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 2935637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void endFling() { 2938637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 2939637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2940637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell removeCallbacks(this); 2941637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPositionScroller != null) { 2942637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell removeCallbacks(mPositionScroller); 2943637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2944637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2945637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 2946637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 2947637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2948637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2949637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void run() { 2950637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 2951637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 2952637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 2953637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2954637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 2955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 2956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 2957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 2958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Scroller scroller = mScroller; 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean more = scroller.computeScrollOffset(); 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int y = scroller.getCurrY(); 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Flip sign to convert finger direction to list items direction 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (e.g. finger moving down means list is moving towards the top) 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int delta = mLastFlingY - y; 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend that each frame of a fling scroll is a touch scroll 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (delta > 0) { 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // List is moving towards the top. Use first view as mMotionPosition 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = mFirstPosition; 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View firstView = getChildAt(0); 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = firstView.getTop(); 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't fling more than 1 screen 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // List is moving towards the bottom. Use last view as mMotionPosition 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offsetToLast = getChildCount() - 1; 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = mFirstPosition + offsetToLast; 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View lastView = getChildAt(offsetToLast); 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = lastView.getTop(); 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't fling more than 1 screen 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't stop just because delta is zero (it could have been rounded) 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (more && !atEnd) { 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 2994005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mLastFlingY = y; 2995005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(this); 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project endFling(); 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2999079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (PROFILE_FLINGING) { 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFlingProfilingStarted) { 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = false; 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30046198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3009079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class PositionScroller implements Runnable { 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int SCROLL_DURATION = 400; 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3017005c0a445e32dfbf18bf93d209da857604925a58Adam Powell private static final int MOVE_DOWN_POS = 1; 3018005c0a445e32dfbf18bf93d209da857604925a58Adam Powell private static final int MOVE_UP_POS = 2; 3019079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn private static final int MOVE_DOWN_BOUND = 3; 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int MOVE_UP_BOUND = 4; 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int MOVE_OFFSET = 5; 3022005c0a445e32dfbf18bf93d209da857604925a58Adam Powell 3023005c0a445e32dfbf18bf93d209da857604925a58Adam Powell private int mMode; 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTargetPos; 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mBoundPos; 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastSeenPos; 3027079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn private int mScrollDuration; 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final int mExtraScroll; 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30306198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy private int mOffsetFromTop; 30316198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy 3032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell PositionScroller() { 3033637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3034637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void start(int position) { 30376198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int firstPos = mFirstPosition; 3038637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastPos = firstPos + getChildCount() - 1; 30396198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy 30406198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy int viewTravelCount; 30416198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (position <= firstPos) { 30426198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy viewTravelCount = firstPos - position + 1; 30436198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mMode = MOVE_UP_POS; 3044637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (position >= lastPos) { 304521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy viewTravelCount = position - lastPos + 1; 304621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mMode = MOVE_DOWN_POS; 3047637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3048637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Already on screen, nothing to do 3049637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3051637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3052637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (viewTravelCount > 0) { 3053637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollDuration = SCROLL_DURATION; 30566198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 30576198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTargetPos = position; 30586198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mBoundPos = INVALID_POSITION; 30596198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mLastSeenPos = INVALID_POSITION; 30604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 30616198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy post(this); 3062f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } 3063f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy 3064f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy void start(int position, int boundPosition) { 3065d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (boundPosition == INVALID_POSITION) { 3066d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne start(position); 3067d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 30686198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPos = mFirstPosition; 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastPos = firstPos + getChildCount() - 1; 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTravelCount; 307479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (position <= firstPos) { 3075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int boundPosFromLast = lastPos - boundPosition; 3076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (boundPosFromLast < 1) { 3077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Moving would shift our bound position off the screen. Abort. 3078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3080637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3081637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int posTravel = firstPos - position + 1; 3082637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int boundTravel = boundPosFromLast - 1; 3083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (boundTravel < posTravel) { 3084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell viewTravelCount = boundTravel; 3085637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMode = MOVE_UP_BOUND; 3086637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3087637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell viewTravelCount = posTravel; 3088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMode = MOVE_UP_POS; 3089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3090637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (position >= lastPos) { 3091637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int boundPosFromFirst = boundPosition - firstPos; 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (boundPosFromFirst < 1) { 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Moving would shift our bound position off the screen. Abort. 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 30950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 3096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int posTravel = position - lastPos + 1; 3098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int boundTravel = boundPosFromFirst - 1; 3099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (boundTravel < posTravel) { 3100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell viewTravelCount = boundTravel; 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMode = MOVE_DOWN_BOUND; 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy viewTravelCount = posTravel; 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMode = MOVE_DOWN_POS; 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Already on screen, nothing to do 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTravelCount > 0) { 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDuration = SCROLL_DURATION / viewTravelCount; 31134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } else { 31144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mScrollDuration = SCROLL_DURATION; 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTargetPos = position; 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBoundPos = boundPosition; 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastSeenPos = INVALID_POSITION; 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 31231cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick void startWithOffset(int position, int offset) { 31241cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick startWithOffset(position, offset, SCROLL_DURATION); 31251cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 31261cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void startWithOffset(int position, int offset, int duration) { 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTargetPos = position; 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOffsetFromTop = offset; 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBoundPos = INVALID_POSITION; 3131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastSeenPos = INVALID_POSITION; 3132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMode = MOVE_OFFSET; 3133637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstPos = mFirstPosition; 3135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 3136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastPos = firstPos + childCount - 1; 3137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTravelCount; 3139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (position < firstPos) { 3140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell viewTravelCount = firstPos - position; 3141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (position > lastPos) { 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTravelCount = position - lastPos; 3143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // On-screen, just scroll. 3145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell smoothScrollBy(targetTop - offset, duration); 3147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Estimate how many screens we should travel 3151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 3152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (int) (duration / screenTravelCount); 3154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastSeenPos = INVALID_POSITION; 3155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void stop() { 3160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell removeCallbacks(this); 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void run() { 3164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 31684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int listHeight = getHeight(); 31694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int firstPos = mFirstPosition; 31704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (mMode) { 31724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MOVE_DOWN_POS: { 31734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int lastViewIndex = getChildCount() - 1; 31744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int lastPos = firstPos + lastViewIndex; 31754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 31764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (lastViewIndex < 0) { 31774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return; 31784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 31794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 31804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (lastPos == mLastSeenPos) { 31814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // No new views, let things keep going. 31824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell post(this); 31834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return; 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View lastView = getChildAt(lastViewIndex); 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastViewHeight = lastView.getHeight(); 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastViewTop = lastView.getTop(); 31890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy final int lastViewPixelsShowing = listHeight - lastViewTop; 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollDuration); 3194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastSeenPos = lastPos; 3196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (lastPos < mTargetPos) { 3197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case MOVE_DOWN_BOUND: { 3203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int nextViewIndex = 1; 3204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPos == mBoundPos || childCount <= nextViewIndex 3207637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell || firstPos + childCount >= mItemCount) { 3208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3209637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3210637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int nextPos = firstPos + nextViewIndex; 3211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (nextPos == mLastSeenPos) { 3213a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira // No new views, let things keep going. 3214a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira post(this); 3215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View nextView = getChildAt(nextViewIndex); 3219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int nextViewHeight = nextView.getHeight(); 3220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int nextViewTop = nextView.getTop(); 3221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int extraScroll = mExtraScroll; 3222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (nextPos < mBoundPos) { 3223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollDuration); 3225e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira 3226e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira mLastSeenPos = nextPos; 3227a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira 3228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (nextViewTop > extraScroll) { 3231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 3235637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3236637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case MOVE_UP_POS: { 3238637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPos == mLastSeenPos) { 3239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // No new views, let things keep going. 3240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3242637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstView == null) { 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstViewTop = firstView.getTop(); 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 32520a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastSeenPos = firstPos; 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPos > mTargetPos) { 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 32604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MOVE_UP_BOUND: { 326279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int lastViewIndex = getChildCount() - 2; 3263637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (lastViewIndex < 0) { 3264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3265637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3266637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastPos = firstPos + lastViewIndex; 32674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (lastPos == mLastSeenPos) { 32694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // No new views, let things keep going. 32704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell post(this); 32714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira return; 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 327379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View lastView = getChildAt(lastViewIndex); 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastViewHeight = lastView.getHeight(); 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastViewTop = lastView.getTop(); 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastViewPixelsShowing = listHeight - lastViewTop; 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastSeenPos = lastPos; 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lastPos > mBoundPos) { 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 32819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = listHeight - mExtraScroll; 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastViewBottom = lastViewTop + lastViewHeight; 328579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (bottom > lastViewBottom) { 32864b4f40f84e72579417604143e5f42115769649b8Romain Guy smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 32874b4f40f84e72579417604143e5f42115769649b8Romain Guy } 32889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MOVE_OFFSET: { 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mLastSeenPos == firstPos) { 32944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // No new views, let things keep going. 32954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell post(this); 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastSeenPos = firstPos; 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int position = mTargetPos; 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastPos = firstPos + childCount - 1; 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < firstPos) { 33064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell smoothScrollBy(-getHeight(), mScrollDuration); 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (position > lastPos) { 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project smoothScrollBy(getHeight(), mScrollDuration); 33104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira post(this); 33114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } else { 33124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // On-screen, just scroll. 33134cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 33144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int distance = targetTop - mOffsetFromTop; 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project smoothScrollBy(distance, 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (int) (mScrollDuration * ((float) distance / getHeight()))); 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } 33204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 33214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell default: 33224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 33234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 33274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 33284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * The amount of friction applied to flings. The default value 33294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * is {@link ViewConfiguration#getScrollFriction}. 33304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * 3331637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return A scalar dimensionless value representing the coefficient of 33324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * friction. 33334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 33344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell public void setFriction(float friction) { 33354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mFlingRunnable == null) { 33364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mFlingRunnable = new FlingRunnable(); 33374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingRunnable.mScroller.setFriction(friction); 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets a scale factor for the fling velocity. The initial scale 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * factor is 1.0. 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scale The scale factor to multiply the velocity by. 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setVelocityScale(float scale) { 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityScale = scale; 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Smoothly scroll to the specified adapter position. The view will 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll such that the indicated position is displayed. 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position Scroll to this adapter position. 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void smoothScrollToPosition(int position) { 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPositionScroller == null) { 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPositionScroller = new PositionScroller(); 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPositionScroller.start(position); 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Smoothly scroll to the specified adapter position. The view will scroll 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * such that the indicated position is displayed <code>offset</code> pixels from 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge of the view. If this is impossible, (e.g. the offset would scroll 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the first or last item beyond the boundaries of the list) it will get as close 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * as possible. The scroll will take <code>duration</code> milliseconds to complete. 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position Position to scroll to 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Desired distance in pixels of <code>position</code> from the top 33720046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell * of the view when scrolling is finished 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param duration Number of milliseconds to use for the scroll 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPositionScroller == null) { 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPositionScroller = new PositionScroller(); 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPositionScroller.startWithOffset(position, offset, duration); 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Smoothly scroll to the specified adapter position. The view will scroll 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * such that the indicated position is displayed <code>offset</code> pixels from 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge of the view. If this is impossible, (e.g. the offset would scroll 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the first or last item beyond the boundaries of the list) it will get as close 3387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * as possible. 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position Position to scroll to 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param offset Desired distance in pixels of <code>position</code> from the top 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the view when scrolling is finished 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void smoothScrollToPositionFromTop(int position, int offset) { 3394d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mPositionScroller == null) { 3395d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mPositionScroller = new PositionScroller(); 3396d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3397d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mPositionScroller.startWithOffset(position, offset); 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3399d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3400d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne /** 3401d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne * Smoothly scroll to the specified adapter position. The view will 3402d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne * scroll such that the indicated position is displayed, but it will 3403d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne * stop early if scrolling further would scroll boundPosition out of 3404d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne * view. 3405d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne * @param position Scroll to this adapter position. 3406d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne * @param boundPosition Do not scroll if it would move this adapter 3407d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne * position out of view. 3408d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne */ 3409d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void smoothScrollToPosition(int position, int boundPosition) { 3410d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mPositionScroller == null) { 3411d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mPositionScroller = new PositionScroller(); 3412b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik } 3413d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mPositionScroller.start(position, boundPosition); 3414d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3415d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3416d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne /** 3417d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne * Smoothly scroll by distance pixels over duration milliseconds. 3418d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne * @param distance Distance to scroll in pixels. 341979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell * @param duration Duration of the scroll animation in milliseconds. 3420637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void smoothScrollBy(int distance, int duration) { 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFlingRunnable == null) { 342379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable = new FlingRunnable(); 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingRunnable.endFling(); 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // No sense starting to scroll if we're not going anywhere 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (distance != 0) { 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingRunnable.startScroll(distance, duration); 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Allows RemoteViews to scroll relatively to a position. 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void smoothScrollByOffset(int position) { 34371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick int index = -1; 34381cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (position < 0) { 34391cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick index = getFirstVisiblePosition(); 34401cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } else if (position > 0) { 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = getLastVisiblePosition(); 3442458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3443637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3444637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (index > -1) { 3445637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View child = getChildAt(index - getFirstVisiblePosition()); 3446637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (child != null) { 3447637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Rect visibleRect = new Rect(); 3448637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (child.getGlobalVisibleRect(visibleRect)) { 3449637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // the child is partially visible 3450637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int childRectArea = child.getWidth() * child.getHeight(); 3451637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int visibleRectArea = visibleRect.width() * visibleRect.height(); 3452637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell float visibleArea = (visibleRectArea / (float) childRectArea); 3453637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final float visibleThreshold = 0.75f; 3454637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((position < 0) && (visibleArea < visibleThreshold)) { 3455637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // the top index is not perceivably visible so offset 3456637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // to account for showing that top index as well 3457637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell ++index; 3458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if ((position > 0) && (visibleArea < visibleThreshold)) { 3459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // the bottom index is not perceivably visible so offset 3460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // to account for showing that bottom index as well 3461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell --index; 3462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 3465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void createScrollingCache() { 3470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollingCacheEnabled && !mCachingStarted) { 3471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setChildrenDrawnWithCacheEnabled(true); 3472637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setChildrenDrawingCacheEnabled(true); 3473637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mCachingStarted = true; 3474637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3475637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3476637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3477637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void clearScrollingCache() { 3478637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mClearScrollingCache == null) { 3479458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mClearScrollingCache = new Runnable() { 3480458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3481458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mCachingStarted) { 3482458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mCachingStarted = false; 3483458034799861fef47e00d85d528b4dac5e00bd51Adam Powell setChildrenDrawnWithCacheEnabled(false); 3484458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 3485458034799861fef47e00d85d528b4dac5e00bd51Adam Powell setChildrenDrawingCacheEnabled(false); 3486458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3487d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (!isAlwaysDrawnWithCacheEnabled()) { 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 3489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 349079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 3491d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell }; 3493458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3494458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(mClearScrollingCache); 349521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 349621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 349721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 3498d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne * Track a motion scroll 34995e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick * 35005e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 35015e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick * began. Positive numbers mean the user's finger is moving down the screen. 35025e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick * @param incrementalDeltaY Change in deltaY from the previous event. 35035e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick * @return true if we're already at the beginning/end of the list and have nothing to do. 3504d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne */ 3505d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 3506d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int childCount = getChildCount(); 3507d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (childCount == 0) { 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 351179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int firstTop = getChildAt(0).getTop(); 351279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int lastBottom = getChildAt(childCount - 1).getBottom(); 3513d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 35154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3516d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // FIXME account for grid vertical spacing too? 3517d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int spaceAbove = listPadding.top - firstTop; 3518d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int end = getHeight() - listPadding.bottom; 3519d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int spaceBelow = lastBottom - end; 3520d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3521637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight() - mPaddingBottom - mPaddingTop; 352279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (deltaY < 0) { 352379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell deltaY = Math.max(-(height - 1), deltaY); 352479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 352579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell deltaY = Math.min(height - 1, deltaY); 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3527637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3528637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (incrementalDeltaY < 0) { 3529637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3531637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 3532637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3533637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 3535637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3536637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0 && firstTop >= listPadding.top && deltaY >= 0) { 3537637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't need to move views down if the top of the first position 3538637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // is already visible 3539637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3540637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3542637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && deltaY <= 0) { 3543637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't need to move views up if the bottom of the last position 3544637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // is already visible 3545637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3546637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3547637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean down = incrementalDeltaY < 0; 3549637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3550637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean inTouchMode = isInTouchMode(); 3551d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (inTouchMode) { 3552637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell hideSelector(); 3553637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3554637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3555d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int headerViewsCount = getHeaderViewsCount(); 3556637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 3557637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3558637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int start = 0; 3559637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int count = 0; 3560637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3561637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (down) { 3562637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int top = listPadding.top - incrementalDeltaY; 3563637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell for (int i = 0; i < childCount; i++) { 3564637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View child = getChildAt(i); 3565637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (child.getBottom() >= top) { 3566637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3567637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3568637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell count++; 3569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int position = firstPosition + i; 3570637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3571637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mRecycler.addScrapView(child, position); 3572637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (ViewDebug.TRACE_RECYCLER) { 3574637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell ViewDebug.trace(child, 3575637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3576637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstPosition + i, -1); 3577637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3580637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 3583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell for (int i = childCount - 1; i >= 0; i--) { 3584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View child = getChildAt(i); 3585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (child.getTop() <= bottom) { 3586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3588d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne start = i; 3589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell count++; 3590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int position = firstPosition + i; 3591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mRecycler.addScrapView(child, position); 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 3595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell ViewDebug.trace(child, 3596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstPosition + i, -1); 3598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 3605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mBlockLayoutRequests = true; 3607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (count > 0) { 3609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell detachViewsFromParent(start, count); 3610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 3612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (down) { 3614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPosition += count; 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 36184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 3620458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 3621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 36224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } 3623458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 3625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 3626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 3627e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell positionSelector(mSelectedPosition, getChildAt(childIndex)); 36284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } 3629458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (mSelectorPosition != INVALID_POSITION) { 3630458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int childIndex = mSelectorPosition - mFirstPosition; 3631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 3632458034799861fef47e00d85d528b4dac5e00bd51Adam Powell positionSelector(INVALID_POSITION, getChildAt(childIndex)); 3633458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 363452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne } else { 3635e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mSelectorRect.setEmpty(); 3636e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 36374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3638458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 3639458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3640458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 36414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira awakenScrollBars(); 3642458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3643458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 3644458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36464bede9e425875542976a422222510fa4056a8339Romain Guy /** 36474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * Returns the number of header views in the list. Header views are special views 3648458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * at the top of the list that should not be recycled during a layout. 3649458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * 3650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return The number of header views, 0 in the default implementation. 3651458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int getHeaderViewsCount() { 3653458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return 0; 3654458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3655458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3656458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 36574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * Returns the number of footer views in the list. Footer views are special views 3658458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * at the bottom of the list that should not be recycled during a layout. 3659458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * 3660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return The number of footer views, 0 in the default implementation. 3661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int getFooterViewsCount() { 3663458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return 0; 3664458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3665458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 36664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira /** 3667458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Fills the gap left open by a touch-scroll. During a touch scroll, children that 3668458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * remain on screen are shifted and the other ones are discarded. The role of this 36694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * method is to fill the gap thus created by performing a partial layout in the 3670458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * empty space. 3671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * 3672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param down true if the scroll is going down, false if it is going up 3673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3674458034799861fef47e00d85d528b4dac5e00bd51Adam Powell abstract void fillGap(boolean down); 36754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void hideSelector() { 3677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mSelectedPosition != INVALID_POSITION) { 36784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (mLayoutMode != LAYOUT_SPECIFIC) { 36794bede9e425875542976a422222510fa4056a8339Romain Guy mResurrectToPosition = mSelectedPosition; 3680fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } 3681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 3682458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mResurrectToPosition = mNextSelectedPosition; 3683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3684458034799861fef47e00d85d528b4dac5e00bd51Adam Powell setSelectedPositionInt(INVALID_POSITION); 3685458034799861fef47e00d85d528b4dac5e00bd51Adam Powell setNextSelectedPositionInt(INVALID_POSITION); 36864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mSelectedTop = 0; 3687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mSelectorShowing = false; 3688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3691458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 3693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 3694458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * of items available in the adapter 3695458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3696fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell int reconcileSelectedPosition() { 3697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = mSelectedPosition; 3698458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position < 0) { 3699458034799861fef47e00d85d528b4dac5e00bd51Adam Powell position = mResurrectToPosition; 3700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell position = Math.max(0, position); 3702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell position = Math.min(position, mItemCount - 1); 3703458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return position; 3704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3705458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3707458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Find the row closest to y. This row will be used as the motion row when scrolling 3708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * 3709458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param y Where the user touched 3710458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return The position of the first (or only) item in the row containing y 3711458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell abstract int findMotionRow(int y); 3713458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3714458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3715458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Causes all the views to be rebuilt and redrawn. 37164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira */ 3717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void invalidateViews() { 3718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mDataChanged = true; 3719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell rememberSyncState(); 3720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell requestLayout(); 3721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 3722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3724458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 37254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * Makes the item at the supplied position selected. 3726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * 3727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position the position of the new selection 3728e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 3729e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell abstract void setSelectionInt(int position); 3730322171b333a1c796fcc1428a96ea1d854a3881faErik 3731322171b333a1c796fcc1428a96ea1d854a3881faErik /** 3732322171b333a1c796fcc1428a96ea1d854a3881faErik * Attempt to bring the selection back if the user is switching from touch 3733322171b333a1c796fcc1428a96ea1d854a3881faErik * to trackball mode 3734e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @return Whether selection was set to something. 3735e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 3736e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell boolean resurrectSelection() { 3737e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int childCount = getChildCount(); 3738e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3739e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (childCount <= 0) { 3740e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return false; 3741371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 3742371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3743e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell int selectedTop = 0; 37444bede9e425875542976a422222510fa4056a8339Romain Guy int selectedPos; 3745e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell int childrenTop = mListPadding.top; 3746e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell int childrenBottom = mBottom - mTop - mListPadding.bottom; 3747e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPosition = mFirstPosition; 3748e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int toPosition = mResurrectToPosition; 3749e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell boolean down = true; 3750e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3751e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 3752322171b333a1c796fcc1428a96ea1d854a3881faErik selectedPos = toPosition; 3753e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3754e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final View selected = getChildAt(selectedPos - mFirstPosition); 3755e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell selectedTop = selected.getTop(); 3756371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell int selectedBottom = selected.getBottom(); 37574ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann 3758322171b333a1c796fcc1428a96ea1d854a3881faErik // We are scrolled, don't get in the fade 3759322171b333a1c796fcc1428a96ea1d854a3881faErik if (selectedTop < childrenTop) { 3760371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell selectedTop = childrenTop + getVerticalFadingEdgeLength(); 3761234a5715309ea74757780aff6123e3144efb5b69Adam Powell } else if (selectedBottom > childrenBottom) { 3762e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell selectedTop = childrenBottom - selected.getMeasuredHeight() 3763e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell - getVerticalFadingEdgeLength(); 3764e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (toPosition < firstPosition) { 3767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Default to selecting whatever is first 3768e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell selectedPos = firstPosition; 3769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 3770371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final View v = getChildAt(i); 3771371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int top = v.getTop(); 3772371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3773371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (i == 0) { 3774458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Remember the position of the first item 3775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedTop = top; 37764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira // See if we are scrolled at all 3777458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPosition > 0 || top < childrenTop) { 3778458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // If we are scrolled, don't select anything that is 3779458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // in the fade region 3780458034799861fef47e00d85d528b4dac5e00bd51Adam Powell childrenTop += getVerticalFadingEdgeLength(); 37814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } 37820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 37830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (top >= childrenTop) { 37840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell // Found a view whose top is fully visisble 3785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedPos = firstPosition + i; 3786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedTop = top; 3787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3790458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int itemCount = mItemCount; 3792458034799861fef47e00d85d528b4dac5e00bd51Adam Powell down = false; 3793458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedPos = firstPosition + childCount - 1; 3794458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3795458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 3796029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final View v = getChildAt(i); 3797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int top = v.getTop(); 3798029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int bottom = v.getBottom(); 3799458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3800458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (i == childCount - 1) { 3801458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedTop = top; 38027e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 3803458034799861fef47e00d85d528b4dac5e00bd51Adam Powell childrenBottom -= getVerticalFadingEdgeLength(); 3804458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3805458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3806458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 38074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (bottom <= childrenBottom) { 3808458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedPos = firstPosition + i; 3809458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedTop = top; 3810029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell break; 38114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } 3812029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 3813029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 3814458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3816458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mResurrectToPosition = INVALID_POSITION; 3817458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mFlingRunnable); 3818458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 3819458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_REST; 3820458034799861fef47e00d85d528b4dac5e00bd51Adam Powell clearScrollingCache(); 3821458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mSpecificTop = selectedTop; 3822458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedPos = lookForSelectablePosition(selectedPos, down); 3823458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 3824458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLayoutMode = LAYOUT_SPECIFIC; 3825458034799861fef47e00d85d528b4dac5e00bd51Adam Powell setSelectionInt(selectedPos); 3826458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 3827458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 38287e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell selectedPos = INVALID_POSITION; 3829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3830458034799861fef47e00d85d528b4dac5e00bd51Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return selectedPos >= 0; 3833458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3835458034799861fef47e00d85d528b4dac5e00bd51Adam Powell @Override 38364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira protected void handleDataChanged() { 3837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = mItemCount; 3838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 3839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int newPos; 3841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 38424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira int selectablePos; 3843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Find the row we are supposed to sync to 3845458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mNeedSync) { 3846458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Update this first, since setNextSelectedPositionInt inspects it 3847458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mNeedSync = false; 3848458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3849458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL || 3850458034799861fef47e00d85d528b4dac5e00bd51Adam Powell (mTranscriptMode == TRANSCRIPT_MODE_NORMAL && 38510b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell mFirstPosition + getChildCount() >= mOldItemCount)) { 38520b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 38530b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 3854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3855029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mSyncMode) { 3857029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell case SYNC_SELECTED_POSITION: 3858458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (isInTouchMode()) { 3859458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // We saved our state when not in touch mode. (We know this because 3860458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 38617e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell // restore in touch mode. Just leave mSyncPosition as it is (possibly 3862458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // adjusting if the available range changed) and return. 3863458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLayoutMode = LAYOUT_SYNC; 3864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 3865458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 38664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira return; 3867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // See if we can find a position in the new data with the same 3869458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // id as the old selection. This will change mSyncPosition. 3870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell newPos = findSyncPosition(); 3871458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (newPos >= 0) { 3872458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Found it. Now verify that new selection is still selectable 3873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectablePos = lookForSelectablePosition(newPos, true); 3874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (selectablePos == newPos) { 3875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Same row id is selected 3876458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mSyncPosition = newPos; 3877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mSyncHeight == getHeight()) { 3879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // If we are at the same height as when we saved state, try 3880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // to restore the scroll position too. 3881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLayoutMode = LAYOUT_SYNC; 3882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3883458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // We are not the same height as when the selection was saved, so 3884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // don't try to restore the exact position 38857e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell mLayoutMode = LAYOUT_SET_SELECTION; 3886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Restore selection 3889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell setNextSelectedPositionInt(newPos); 3890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3895458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case SYNC_FIRST_POSITION: 3896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Leave mSyncPosition as it is -- just pin to available range 3897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLayoutMode = LAYOUT_SYNC; 3898e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 3899234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3900234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 3901234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 3902234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 3903234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3904e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (!isInTouchMode()) { 3905371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // We couldn't find matching data -- try to use the same position 3906234a5715309ea74757780aff6123e3144efb5b69Adam Powell newPos = getSelectedItemPosition(); 3907234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3908e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // Pin position to the available range 3909371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (newPos >= count) { 3910e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell newPos = count - 1; 3911e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3912371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (newPos < 0) { 3913e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell newPos = 0; 3914e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3915371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3916e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // Make sure we select something selectable -- first look down 3917e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell selectablePos = lookForSelectablePosition(newPos, true); 3918e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3919e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (selectablePos >= 0) { 3920234a5715309ea74757780aff6123e3144efb5b69Adam Powell setNextSelectedPositionInt(selectablePos); 3921234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 3922234a5715309ea74757780aff6123e3144efb5b69Adam Powell } else { 3923e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // Looking down didn't work -- try looking up 3924e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell selectablePos = lookForSelectablePosition(newPos, false); 3925e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (selectablePos >= 0) { 3926e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell setNextSelectedPositionInt(selectablePos); 3927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 39324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira // We already know where we want to resurrect the selection 3933458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mResurrectToPosition >= 0) { 39344bede9e425875542976a422222510fa4056a8339Romain Guy return; 39354bede9e425875542976a422222510fa4056a8339Romain Guy } 39364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } 39374bede9e425875542976a422222510fa4056a8339Romain Guy 39384bede9e425875542976a422222510fa4056a8339Romain Guy } 39394bede9e425875542976a422222510fa4056a8339Romain Guy 39404bede9e425875542976a422222510fa4056a8339Romain Guy // Nothing is selected. Give up and reset everything. 39414bede9e425875542976a422222510fa4056a8339Romain Guy mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 39424bede9e425875542976a422222510fa4056a8339Romain Guy mSelectedPosition = INVALID_POSITION; 39434bede9e425875542976a422222510fa4056a8339Romain Guy mSelectedRowId = INVALID_ROW_ID; 39444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mNextSelectedPosition = INVALID_POSITION; 39454bede9e425875542976a422222510fa4056a8339Romain Guy mNextSelectedRowId = INVALID_ROW_ID; 394621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mNeedSync = false; 394721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mSelectorPosition = INVALID_POSITION; 394821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy checkSelectionChanged(); 394921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 39504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 395121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy @Override 395221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy protected void onDisplayHint(int hint) { 395321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy super.onDisplayHint(hint); 395421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy switch (hint) { 395521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy case INVISIBLE: 39564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (mPopup != null && mPopup.isShowing()) { 39574bede9e425875542976a422222510fa4056a8339Romain Guy dismissPopup(); 3958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case VISIBLE: 3961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFiltered && mPopup != null && !mPopup.isShowing()) { 3962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell showPopup(); 3963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPopupHidden = hint == INVISIBLE; 3967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3968322171b333a1c796fcc1428a96ea1d854a3881faErik 3969322171b333a1c796fcc1428a96ea1d854a3881faErik /** 3970322171b333a1c796fcc1428a96ea1d854a3881faErik * Removes the filter window 3971322171b333a1c796fcc1428a96ea1d854a3881faErik */ 3972322171b333a1c796fcc1428a96ea1d854a3881faErik private void dismissPopup() { 3973322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPopup != null) { 3974322171b333a1c796fcc1428a96ea1d854a3881faErik mPopup.dismiss(); 3975322171b333a1c796fcc1428a96ea1d854a3881faErik } 3976322171b333a1c796fcc1428a96ea1d854a3881faErik } 3977322171b333a1c796fcc1428a96ea1d854a3881faErik 3978322171b333a1c796fcc1428a96ea1d854a3881faErik /** 3979322171b333a1c796fcc1428a96ea1d854a3881faErik * Shows the filter window 3980322171b333a1c796fcc1428a96ea1d854a3881faErik */ 3981322171b333a1c796fcc1428a96ea1d854a3881faErik private void showPopup() { 3982322171b333a1c796fcc1428a96ea1d854a3881faErik // Make sure we have a window before showing the popup 3983322171b333a1c796fcc1428a96ea1d854a3881faErik if (getWindowVisibility() == View.VISIBLE) { 3984322171b333a1c796fcc1428a96ea1d854a3881faErik createTextFilter(true); 3985322171b333a1c796fcc1428a96ea1d854a3881faErik positionPopup(); 3986322171b333a1c796fcc1428a96ea1d854a3881faErik // Make sure we get focus if we are showing the popup 3987322171b333a1c796fcc1428a96ea1d854a3881faErik checkFocus(); 3988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3989e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3990e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3991e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private void positionPopup() { 3992e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell int screenHeight = getResources().getDisplayMetrics().heightPixels; 3993e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int[] xy = new int[2]; 3994e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell getLocationOnScreen(xy); 3995e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // TODO: The 20 below should come from the theme 3996e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // TODO: And the gravity should be defined in the theme as well 3997e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 3998e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (!mPopup.isShowing()) { 3999e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 4000e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell xy[0], bottomGap); 4001e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4002e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPopup.update(xy[0], bottomGap, -1, -1); 4003e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4004e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4005e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4006e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * What is the distance between the source and destination rectangles given the direction of 4008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * focus navigation between them? The direction basically helps figure out more quickly what is 4009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * self evident by the relationship between the rects... 40104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 4011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param source the source rectangle 4012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param dest the destination rectangle 4013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param direction the direction 4014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return the distance between the rectangles 4015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell static int getDistance(Rect source, Rect dest, int direction) { 4017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int sX, sY; // source x, y 4018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int dX, dY; // dest x, y 4019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (direction) { 4020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case View.FOCUS_RIGHT: 40214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira sX = source.right; 4022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell sY = source.top + source.height() / 2; 4023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell dX = dest.left; 4024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell dY = dest.top + dest.height() / 2; 4025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case View.FOCUS_DOWN: 4027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell sX = source.left + source.width() / 2; 4028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell sY = source.bottom; 4029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell dX = dest.left + dest.width() / 2; 4030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell dY = dest.top; 4031299acb581205b6574bfa91824b1b887e265c4c40Marc Blank break; 4032299acb581205b6574bfa91824b1b887e265c4c40Marc Blank case View.FOCUS_LEFT: 40330046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell sX = source.left; 4034299acb581205b6574bfa91824b1b887e265c4c40Marc Blank sY = source.top + source.height() / 2; 40350046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell dX = dest.right; 40360046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell dY = dest.top + dest.height() / 2; 4037299acb581205b6574bfa91824b1b887e265c4c40Marc Blank break; 4038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case View.FOCUS_UP: 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 4040499cb9f516062b654952d282f211bee44c31a3c2Winson Chung sY = source.top; 4041499cb9f516062b654952d282f211bee44c31a3c2Winson Chung dX = dest.left + dest.width() / 2; 4042499cb9f516062b654952d282f211bee44c31a3c2Winson Chung dY = dest.bottom; 4043499cb9f516062b654952d282f211bee44c31a3c2Winson Chung break; 4044499cb9f516062b654952d282f211bee44c31a3c2Winson Chung default: 4045499cb9f516062b654952d282f211bee44c31a3c2Winson Chung throw new IllegalArgumentException("direction must be one of " 4046499cb9f516062b654952d282f211bee44c31a3c2Winson Chung + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 4047499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4048499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int deltaX = dX - sX; 4049499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int deltaY = dY - sY; 4050499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return deltaY * deltaY + deltaX * deltaX; 4051499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4052499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4053499cb9f516062b654952d282f211bee44c31a3c2Winson Chung @Override 4054499cb9f516062b654952d282f211bee44c31a3c2Winson Chung protected boolean isInFilterMode() { 4055499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return mFiltered; 4056499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4057499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4058499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4059499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sends a key to the text filter window 4060499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * 4061499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param keyCode The keycode for the event 4062499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param event The actual key event 4063499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * 4064499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @return True if the text filter handled the event, false otherwise. 4065499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4066499cb9f516062b654952d282f211bee44c31a3c2Winson Chung boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 4067499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (!acceptFilter()) { 4068499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return false; 4069499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4070499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4071499cb9f516062b654952d282f211bee44c31a3c2Winson Chung boolean handled = false; 4072499cb9f516062b654952d282f211bee44c31a3c2Winson Chung boolean okToSend = true; 4073499cb9f516062b654952d282f211bee44c31a3c2Winson Chung switch (keyCode) { 4074499cb9f516062b654952d282f211bee44c31a3c2Winson Chung case KeyEvent.KEYCODE_DPAD_UP: 4075499cb9f516062b654952d282f211bee44c31a3c2Winson Chung case KeyEvent.KEYCODE_DPAD_DOWN: 40769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 40809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered && mPopup != null && mPopup.isShowing()) { 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (event.getAction() == KeyEvent.ACTION_DOWN 40856dfed24158b8fc9150abee23992db621cd82aa43Romain Guy && event.getRepeatCount() == 0) { 40866dfed24158b8fc9150abee23992db621cd82aa43Romain Guy getKeyDispatcherState().startTracking(event, this); 40876dfed24158b8fc9150abee23992db621cd82aa43Romain Guy handled = true; 40886dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } else if (event.getAction() == KeyEvent.ACTION_UP 40896dfed24158b8fc9150abee23992db621cd82aa43Romain Guy && event.isTracking() && !event.isCanceled()) { 40906dfed24158b8fc9150abee23992db621cd82aa43Romain Guy handled = true; 40916dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mTextFilter.setText(""); 40926dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 40936dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 40946dfed24158b8fc9150abee23992db621cd82aa43Romain Guy okToSend = false; 40956dfed24158b8fc9150abee23992db621cd82aa43Romain Guy break; 40966dfed24158b8fc9150abee23992db621cd82aa43Romain Guy case KeyEvent.KEYCODE_SPACE: 40976dfed24158b8fc9150abee23992db621cd82aa43Romain Guy // Only send spaces once we are filtered 40986dfed24158b8fc9150abee23992db621cd82aa43Romain Guy okToSend = mFiltered; 40996dfed24158b8fc9150abee23992db621cd82aa43Romain Guy break; 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41016dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (okToSend) { 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 41069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int action = event.getAction(); 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 4112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case KeyEvent.ACTION_DOWN: 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 41149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 4115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return an InputConnection for editing of the filter text. 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isTextFilterEnabled()) { 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // XXX we need to have the text filter created, so we can get an 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // much need to make it as soon as a list view gets focus. 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPublicInputConnection == null) { 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDefInputConnection = new BaseInputConnection(this, false); 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPublicInputConnection = new InputConnectionWrapper( 4141458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTextFilter.onCreateInputConnection(outAttrs), true) { 41429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 4143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public boolean reportFullscreenMode(boolean enabled) { 4144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Use our own input connection, since it is 4145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // the "real" one the IME is talking with. 4146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return mDefInputConnection.reportFullscreenMode(enabled); 4147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 4150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public boolean performEditorAction(int editorAction) { 4151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // The editor is off in its own window; we need to be 4152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // the one that does this. 4153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (editorAction == EditorInfo.IME_ACTION_DONE) { 4154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell InputMethodManager imm = (InputMethodManager) 4155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell getContext().getSystemService( 4156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell Context.INPUT_METHOD_SERVICE); 4157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (imm != null) { 4158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell imm.hideSoftInputFromWindow(getWindowToken(), 0); 4159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 4161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return false; 4163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 4166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public boolean sendKeyEvent(KeyEvent event) { 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Use our own input connection, since the filter 4168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // text view may not be shown in a window so has 41699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // no ViewRoot to dispatch events with. 4170029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell return mDefInputConnection.sendKeyEvent(event); 4171029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4172029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell }; 4173029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 41749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 4175458034799861fef47e00d85d528b4dac5e00bd51Adam Powell | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 4176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 41779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mPublicInputConnection; 4178458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4179458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return null; 41809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 41828c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell /** 41838c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell * For filtering we proxy an input connection to an internal text editor, 41848c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell * and this allows the proxying to happen. 41858c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell */ 4186458034799861fef47e00d85d528b4dac5e00bd51Adam Powell @Override 4187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public boolean checkInputConnectionProxy(View view) { 4188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return view == mTextFilter; 4189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4191458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Creates the window for the text filter and populates it with an EditText field; 4193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * 4194079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @param animateEntrance true if the window should appear with an animation 4195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private void createTextFilter(boolean animateEntrance) { 4197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPopup == null) { 4198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell Context c = getContext(); 4199458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PopupWindow p = new PopupWindow(c); 42009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 42019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 42029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 4203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell com.android.internal.R.layout.typing_filter, null); 4204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // For some reason setting this as the "real" input type changes 42058c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell // the text view in some way that it doesn't work, and I don't 42068c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell // want to figure out why this is. 42078c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 42088c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 4209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 4210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTextFilter.addTextChangedListener(this); 4211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell p.setFocusable(false); 4212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell p.setTouchable(false); 4213458034799861fef47e00d85d528b4dac5e00bd51Adam Powell p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 4214458034799861fef47e00d85d528b4dac5e00bd51Adam Powell p.setContentView(mTextFilter); 4215458034799861fef47e00d85d528b4dac5e00bd51Adam Powell p.setWidth(LayoutParams.WRAP_CONTENT); 4216458034799861fef47e00d85d528b4dac5e00bd51Adam Powell p.setHeight(LayoutParams.WRAP_CONTENT); 4217458034799861fef47e00d85d528b4dac5e00bd51Adam Powell p.setBackgroundDrawable(null); 4218079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mPopup = p; 4219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell getViewTreeObserver().addOnGlobalLayoutListener(this); 4220458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mGlobalLayoutListenerAddedFilter = true; 4221458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4222458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (animateEntrance) { 4223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 42259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 42269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4228458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4230458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Clear the text filter. 42319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4232458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void clearTextFilter() { 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 4234458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTextFilter.setText(""); 42359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 4236458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPopup != null && mPopup.isShowing()) { 4237458034799861fef47e00d85d528b4dac5e00bd51Adam Powell dismissPopup(); 42389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4240458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4241458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 42424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira /** 4243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Returns if the ListView currently has a text filter. 42449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4245458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public boolean hasTextFilter() { 4246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return mFiltered; 4247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void onGlobalLayout() { 4250029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (isShown()) { 42512a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell // Show the popup if we are filtered 42522a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 4253079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn showPopup(); 4254079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4255079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4256079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // Hide the popup when we are no longer visible 4257079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mPopup != null && mPopup.isShowing()) { 4258079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn dismissPopup(); 42592a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4260079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4261079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 4262029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4263029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4264458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * For our text watcher that is associated with the text filter. Does 4266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * nothing. 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 42684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira public void beforeTextChanged(CharSequence s, int start, int count, int after) { 4269458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * For our text watcher that is associated with the text filter. Performs 42739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the actual filtering as the text changes, and takes care of hiding and 42749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * showing the popup displaying the currently entered filter text. 42759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 42779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 42789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 42799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 42809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 42819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 42829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 42869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 42879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 42929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 42949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 42969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 42979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * For our text watcher that is associated with the text filter. Does 4304ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell * nothing. 4305ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell */ 4306ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell public void afterTextChanged(Editable s) { 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 43109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 4313079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 43189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 43229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 43249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 43279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 43364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * 43379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 43409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4341637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setTranscriptMode(int mode) { 4342637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTranscriptMode = mode; 4343637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4344637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4345637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 4346637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Returns the current transcript mode. 4347637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4348637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 4349637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 4350637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4351637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public int getTranscriptMode() { 4352637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return mTranscriptMode; 4353637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4354637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4355637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 4356637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public int getSolidColor() { 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background. 43639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Zero means that what's behind this object is translucent (non solid) or is not made of a 43659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * single color. This hint will not affect any existing background drawable set on this view ( 43669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * typically set via {@link #setBackgroundDrawable(Drawable)}). 43679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 43699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 43719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (color != mCacheColorHint) { 43729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCacheColorHint = color; 43739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 43749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 43759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(i).setDrawingCacheBackgroundColor(color); 43769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.setCacheColorHint(color); 43789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 43839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 43849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 43939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 43959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 44019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 44039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 44049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 44059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 44069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 44079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 44089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 44099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 44109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 44119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 44129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 44169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 44179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 44219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 44239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean onConsistencyCheck(int consistency) { 44249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean result = super.onConsistencyCheck(consistency); 44259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 44279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (checkLayout) { 44299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The active recycler must be empty 44309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mRecycler.mActiveViews; 44319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = activeViews.length; 44329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 44339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (activeViews[i] != null) { 44349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result = false; 44359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 44369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project "AbsListView " + this + " has a view in its active recycler: " + 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i]); 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // All views in the recycler must NOT be on screen and must NOT have a parent 44429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mRecycler.mCurrentScrap; 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!checkScrap(scrap)) result = false; 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scraps = mRecycler.mScrapViews; 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project count = scraps.length; 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!checkScrap(scraps[i])) result = false; 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return result; 44529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean checkScrap(ArrayList<View> scrap) { 44559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrap == null) return true; 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean result = true; 44579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = scrap.size(); 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 4460371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final View view = scrap.get(i); 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (view.getParent() != null) { 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result = false; 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 44649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project " has a view in its scrap heap still attached to a parent: " + view); 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (indexOfChild(view) >= 0) { 44679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result = false; 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 44699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project " has a view in its scrap heap that is also a direct child: " + view); 44709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return result; 44749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 44789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * through the specified intent. 44799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 44809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRemoteViewsAdapter(Intent intent) { 44829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // service handling the specified intent. 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRemoteAdapter != null) { 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Intent.FilterComparison fcOld = new Intent.FilterComparison( 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRemoteAdapter.getRemoteViewsServiceIntent()); 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fcNew.equals(fcOld)) { 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44910785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Otherwise, create a new RemoteViewsAdapter for binding 4494da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 4495da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 4496da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 4497da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 4498da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Called back when the adapter connects to the RemoteViewsService. 4499da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 45000785279dad89d90564f42beb2c4620bf387a966eAdam Powell public void onRemoteAdapterConnected() { 45010785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mRemoteAdapter != mAdapter) { 45020785279dad89d90564f42beb2c4620bf387a966eAdam Powell setAdapter(mRemoteAdapter); 45030785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 45040785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 45050785279dad89d90564f42beb2c4620bf387a966eAdam Powell 45060785279dad89d90564f42beb2c4620bf387a966eAdam Powell /** 45070785279dad89d90564f42beb2c4620bf387a966eAdam Powell * Called back when the adapter disconnects from the RemoteViewsService. 45080785279dad89d90564f42beb2c4620bf387a966eAdam Powell */ 45090785279dad89d90564f42beb2c4620bf387a966eAdam Powell public void onRemoteAdapterDisconnected() { 45100785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mRemoteAdapter == mAdapter) { 45110785279dad89d90564f42beb2c4620bf387a966eAdam Powell mRemoteAdapter = null; 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setAdapter(null); 45139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 45189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 45199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 45229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 45239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 45259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 45269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 45289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 45349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 45359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selects and deselects list items. 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface MultiChoiceModeListener extends ActionMode.Callback { 45389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Called when an item is checked or unchecked during selection mode. 45409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode The {@link ActionMode} providing the selection mode 45429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position Adapter position of the item that was checked or unchecked 45439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id Adapter ID of the item that was checked or unchecked 45449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param checked <code>true</code> if the item is now checked, <code>false</code> 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the item is now unchecked. 45469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onItemCheckedStateChanged(ActionMode mode, 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position, long id, boolean checked); 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class MultiChoiceModeWrapper implements MultiChoiceModeListener { 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private MultiChoiceModeListener mWrapped; 45539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setWrapped(MultiChoiceModeListener wrapped) { 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWrapped = wrapped; 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onCreateActionMode(ActionMode mode, Menu menu) { 45599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mWrapped.onCreateActionMode(mode, menu)) { 45609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Initialize checked graphic state? 45619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setLongClickable(false); 45629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 45639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 45659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 45689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mWrapped.onPrepareActionMode(mode, menu); 45699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mWrapped.onActionItemClicked(mode, item); 45739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onDestroyActionMode(ActionMode mode) { 45769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWrapped.onDestroyActionMode(mode); 45779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mChoiceActionMode = null; 45789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Ending selection mode means deselecting everything. 45809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearChoices(); 45819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 45839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 45849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 45859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setLongClickable(true); 45879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onItemCheckedStateChanged(ActionMode mode, 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position, long id, boolean checked) { 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If there are no items selected we no longer need the selection mode. 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getCheckedItemCount() == 0) { 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mode.finish(); 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 46029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 4604079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 460843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @ViewDebug.ExportedProperty(category = "list", mapping = { 460943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 461043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 461143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy }) 461243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy int viewType; 461343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 461443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy /** 461543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy * When this boolean is set, the view has been added to the AbsListView 461643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy * at least once. It is used to know whether headers/footers have already 461743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy * been added to the list view and whether they should be treated as 461843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy * recycled views or not. 461943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy */ 462043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @ViewDebug.ExportedProperty(category = "list") 462143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy boolean recycledHeaderFooter; 462243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 462324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy /** 462443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 462543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy * to obtain children views to measure itself. When doing so, the children 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * are not attached to the window, but put in the recycler which assumes 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * they've been attached before. Setting this flag will force the reused 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view to be attached to the window rather than just attached to the 4629d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * parent. 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty(category = "list") 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean forceAdd; 46339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position the view was removed from when pulled out of the 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scrap heap. 46379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 46389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int scrappedFromPosition; 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46414df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 4642b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project super(c, attrs); 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 46469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4648b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project 46499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 465224443ea3992e372e47daa50266b0f2ec38cac388Romain Guy } 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 4655b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project super(source); 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 46619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 46629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 46769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 46819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 46829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 46839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 46849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 46869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 46879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 46959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 46989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 4724b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mScrapViews = scrapViews; 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void markChildrenDirty() { 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 47299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 47319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrap.get(i).forceLayout(); 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 47369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 47379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 47389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 47399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 474083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn scrap.get(j).forceLayout(); 47418d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn } 47428d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn } 47438d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn } 474483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 474583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn 474683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn public boolean shouldRecycleViewType(int viewType) { 474783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn return viewType >= 0; 474883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 474983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4755cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy final ArrayList<View> scrap = mCurrentScrap; 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 4759b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 4764105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project final int scrapCount = scrap.size(); 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 4786b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project for (int i = 0; i < childCount; i++) { 4787b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project View child = getChildAt(i); 4788b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 4789b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // Don't put header or footer views into the scrap heap 4790c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 4791c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 4792c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // However, we will NOT place them into scrap views. 4793c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project activeViews[i] = child; 4794c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 47951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 47961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 47971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 47981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn /** 47991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * Get the view corresponding to the specified position. The view will be removed from 48001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * mActiveViews if it is found. 48011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * 48021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * @param position The position to look up in mActiveViews 48031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * @return The view if it is found, null otherwise 48041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn */ 48051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn View getActiveView(int position) { 48061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn int index = position - mFirstActivePosition; 48071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn final View[] activeViews = mActiveViews; 48081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (index >=0 && index < activeViews.length) { 48091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn final View match = activeViews[index]; 48101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn activeViews[index] = null; 48111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return match; 48121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return null; 48141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 48161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn /** 48171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * @return A view from the ScrapViews collection. These are unordered. 48181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn */ 48191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn View getScrapView(int position) { 48201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mViewTypeCount == 1) { 48211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 48221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } else { 48231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn int whichScrap = mAdapter.getItemViewType(position); 48241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 48251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 48261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return null; 48291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 48311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn /** 48321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * Put a view into the ScapViews list. These views are unordered. 48331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * 48341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * @param scrap The view to add 4835c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project */ 4836c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project void addScrapView(View scrap, int position) { 4837b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 48380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (lp == null) { 4839b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return; 4840b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 4841b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project 4842b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // Don't put header or footer views or views that should be ignored 4843b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // into the scrap heap 4844b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project int viewType = lp.viewType; 4845b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 4846b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 48470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy removeDetachedView(scrap, false); 4848b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.scrappedFromPosition = position; 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrap.dispatchStartTemporaryDetach(); 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 48574df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project } else { 48584df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project scrap.dispatchStartTemporaryDetach(); 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4861b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project 4862b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (mRecyclerListener != null) { 4863b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 4864b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 4865b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 4866105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 4877d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy for (int i = count - 1; i >= 0; i--) { 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.LayoutParams lp 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = (AbsListView.LayoutParams) victim.getLayoutParams(); 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = lp.viewType; 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(whichScrap)) { 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(victim, false); 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project victim.dispatchStartTemporaryDetach(); 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lp.scrappedFromPosition = mFirstActivePosition + i; 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 490924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy } 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 491443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 49221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn final int viewTypeCount = mViewTypeCount; 49231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn final ArrayList<View>[] scrapViews = mScrapViews; 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 49291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn for (int j = 0; j < extras; j++) { 49301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn removeDetachedView(scrapPile.remove(size--), false); 49311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4934c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 49431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn final ArrayList<View>[] scrapViews = mScrapViews; 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Updates the cache color hint of all known views. 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The new cache color hint. 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void setCacheColorHint(int color) { 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 49601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn for (int i = 0; i < scrapCount; i++) { 49611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn scrap.get(i).setDrawingCacheBackgroundColor(color); 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrap.get(j).setDrawingCacheBackgroundColor(color); 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Just in case this is called during a layout pass 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; ++i) { 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project victim.setDrawingCacheBackgroundColor(color); 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 49869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we still have a view for this position. 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i=0; i<size; i++) { 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = scrapViews.get(i); 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (((AbsListView.LayoutParams)view.getLayoutParams()) 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project .scrappedFromPosition == position) { 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.remove(i); 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return view; 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project