AbsListView.java revision d173fa3b1cb8e4294aba7564c0171894be6c3c24
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19234a5715309ea74757780aff6123e3144efb5b69Adam Powellimport com.android.internal.R; 20234a5715309ea74757780aff6123e3144efb5b69Adam Powell 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 22499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 23637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.content.res.Resources; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 39f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 40f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 41079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 42f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 43637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 48f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 58b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 59b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 67d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 68d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 69d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 80f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 84499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 85499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we just received the touch event and we are waiting to see if the it is a tap or a 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which IDs are currently checked 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> mCheckedIdStates; 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 256499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 257499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 258499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 259499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 260499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 271079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * Set to true if we would like to have the selector showing itself. 272079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * We still need to draw and position it even if this is false. 273079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 274079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn boolean mSelectorShowing; 275079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 276079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 277079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 278079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 279079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 280079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 281079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 3884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4600b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4861cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 4871cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 4881cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 4891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 4901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 4911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 4921cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 4931cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 4941cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 515d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 516d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 517d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 518d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 519d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 546d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 548d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5536dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5546dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5554296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5564296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 55721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 55921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 56124562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 56224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 56324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 5766dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 580637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private EdgeGlow mEdgeGlowTop; 594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private EdgeGlow mEdgeGlowBottom; 599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 620da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 621da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 622da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 623da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 624da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 625da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 674e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 675e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 676e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 677e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 678e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 679e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 680e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 681e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 682e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 683e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 684e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 685e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 686e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 687e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 688e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 689e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7340a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7404e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 74130346c4399af45b46996f504004796177b975349Romain Guy final int adapterId = a.getResourceId(R.styleable.AbsListView_adapter, 0); 74230346c4399af45b46996f504004796177b975349Romain Guy if (adapterId != 0) { 74330346c4399af45b46996f504004796177b975349Romain Guy final Context c = context; 74430346c4399af45b46996f504004796177b975349Romain Guy post(new Runnable() { 74530346c4399af45b46996f504004796177b975349Romain Guy public void run() { 74630346c4399af45b46996f504004796177b975349Romain Guy setAdapter(Adapters.loadAdapter(c, adapterId)); 74730346c4399af45b46996f504004796177b975349Romain Guy } 74830346c4399af45b46996f504004796177b975349Romain Guy }); 74930346c4399af45b46996f504004796177b975349Romain Guy } 750d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 751f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 75220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 75320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 754f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 758d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 759d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 760df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 761d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 762d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 763d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 764d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 765d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 7664296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 7674296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 7684296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 7694296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 773d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 774d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 7750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 7804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 7814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira final Resources res = context.getResources(); 782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable edge = res.getDrawable(R.drawable.overscroll_edge); 783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable glow = res.getDrawable(R.drawable.overscroll_glow); 7844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowTop = new EdgeGlow(context, edge, glow); 7854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowBottom = new EdgeGlow(context, edge, glow); 786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 791637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 792637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 794d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 796f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 798f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 799f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 800f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 801f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final LongSparseArray<Boolean> idStates = mCheckedIdStates; 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 995bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1019bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1041bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1042bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1043bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1107637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 1108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount != mItemCount) { 1109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return false; 1110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return getChildAt(0).getTop() >= 0 && getChildAt(childCount - 1).getBottom() <= mBottom; 1113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1115637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 113920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 114020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 114120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 114220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 114320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 114420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 114520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 114620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 114720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 114820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 114920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 115020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 115120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 115220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 115320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 115520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 115620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 115720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 115920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 116020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 116120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 116220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 116320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 116420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 116520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 116620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 116720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 116820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 116920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 117020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 117120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 117320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 117420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 117516bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 117620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 117720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 117920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 118020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 118120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 119120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 119220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 119320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 119420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 119520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 119620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 13286bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1384a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 13852614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1386f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 1387f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> checkIdState; 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1407a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 14082614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1409f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 1410f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell long[] idState = in.createLongArray(); 1411f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1412f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (idState.length > 0) { 1413f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState = new LongSparseArray<Boolean>(); 1414f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState.setValues(idState, Boolean.TRUE); 1415f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1427a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 14282614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1429f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 1430f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1442f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1443f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1462f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 147299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14837becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 14847becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 14857becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 14867becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 14877becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 14887becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 14897becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 14907becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 14917becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 14927becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 149599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 149699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 149799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 149899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 149999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 150099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1519a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1520a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 1521f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkState = mCheckStates; 1522f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkIdState = mCheckedIdStates; 15232614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1524f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1547079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1557f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1558f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1559f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1560f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1561f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1562f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1563f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1564f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15652614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 15662614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1567a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1568a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1569a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1570a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1571a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1576d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1577d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 15830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1647079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 1648079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16920b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 16930b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 17130b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 17140b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 17150b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1716637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1717637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1718637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1719637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 17200b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 17210b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 17220b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 17230b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1772da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1773da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1774da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1775da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1776da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int listBottom = getBottom() - getPaddingBottom(); 1777da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1778da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1779da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mOldItemCount && 1780da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1781da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1784d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1785d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1786d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1787d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1792f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1793f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1794f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1795f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1796f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1797f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1798f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 17992c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 18002c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 18012c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 18022c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1803f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1807637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1817d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1818d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1819d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1820d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1821d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1822d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1823d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1824d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1830d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1831d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1832d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 193521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 193621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 19374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 194021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 194121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 1961079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 196921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1970a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1971a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1987079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 1988079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 1989079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 1990079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1991079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 1994e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 1995e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 1996e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2003079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelectorShowing) { 2004079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2005079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 204620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 204720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 204820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 204920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 205020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 205120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 205220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 205320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 205420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 205520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 205620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 205720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 205820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 205920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 206020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 206120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 206220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 206320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 206420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 206520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 206620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 206720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 206820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 206920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 207020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2076d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2109079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2153079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2171df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2172df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2173df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2174df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2178079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2182ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2183ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2184ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2185ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2192df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2193df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2213079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2214079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2215079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2216079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2217079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2218079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2219079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2220079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2221079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2222079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2226079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2269e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2270e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2271e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2272e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2273e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2274e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 2281d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 2282d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 2283d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 228682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 228782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 228882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 22896a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 22906a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 22916a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 22926a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 22936a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 229482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23011f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 23021f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 23031f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 230421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 230521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 230621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 2310d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 2311d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 2312d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 2313d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 231582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 231682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 231782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 231882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 231982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 23201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 23221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 23231cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 23241cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 23251cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23261cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 23271cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 23281cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 23291cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2330d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2331d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2332d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2333d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2334d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2335d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 2336d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPositionScroller); 2337d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2338d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2339d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2340d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2341d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2342d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2343d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2344d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2345d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2346d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2347d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2348d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2349d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2350d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2361670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2362670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2363670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2364670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2365670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 2366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 2368637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2371670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 238097566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 24260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24350a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2445005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2446005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2447005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2448005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2449005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 2450005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 24640a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24770a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25018350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2503f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2504f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 2505f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode == null) { 2506f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 2507f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 2508f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2509f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // TODO Should we select the long pressed item if we were already in 2510f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selection mode? (i.e. treat it like an item click?) 2511f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2512f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2513f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2515f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2559df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2560df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2561df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2562df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2563df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2568dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2569dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2570dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2571df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2572dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2574dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 257645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 257745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 257845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 257945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2583dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2650079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2651079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26770a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2688637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2689637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 2691637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2728637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 2729637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 2730637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 2731637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2734637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2735637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 2736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2745dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2746dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2747dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2748dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2749dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2750dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27550a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 275782f3495b146b267f3786997752cef25310176349Romain Guy 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 2770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 2771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 2772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 2775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 2781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 2783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 2784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 2785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 2786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 2787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 2788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 2789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // click or a scroll. Assume it is a click until proven otherwise 2790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 2791637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 2792637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 2793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 2794637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 2796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 2798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // If we couldn't find a view to click on, but the down event was touching 2799637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // the edge, we will bail out and try again. This allows the edge correcting 2800637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // code in ViewRoot to try to find a nearby view to select 2801637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return false; 2802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 2805637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 2806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 2807637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2808637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2809637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 2810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 2811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28129d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 281379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28149d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 2815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 2816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 2817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 2818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 2819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 2821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2823637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 2824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 28314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 28324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28501cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan == null) { 28511cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick // If it's non-null, we're already in a scroll. 28521cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 28531cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 28541cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2856110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2857110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2858110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2859110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2860110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2861110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2862110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2863110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 2864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2867a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 2868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionIndex; 2869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mMotionPosition >= 0) { 2870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = mMotionPosition - mFirstPosition; 2871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // If we don't have a motion position that we can reliably track, 2873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // pick something in the middle to make a best guess at things below. 2874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = getChildCount() / 2; 2875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2877637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionViewPrevTop = 0; 2878637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(motionIndex); 2879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionViewPrevTop = motionView.getTop(); 2881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 28836198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 28856198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 28876198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2890637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = this.getChildAt(motionIndex); 2891637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2892637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check if the top of the motion view is where it is 2893637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // supposed to be 2894637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionViewRealTop = motionView.getTop(); 2895637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEdge) { 2896637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Apply overscroll 2897637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2898637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overscroll = -incrementalDeltaY - 2899637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (motionViewRealTop - motionViewPrevTop); 2900637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 2901637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 2903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 2904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 2905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2910637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 2911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = 0; // Reset when entering overscroll. 2912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2913637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 2914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) overscroll / getHeight()); 2915637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 2916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 2917637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2918637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 2919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 2920637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 2921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 2922637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2923637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2924637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 292579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2926b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2927b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 292879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 292979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 293079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 293179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 2932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2933637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 2934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (y != mLastY) { 2935637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 2936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell deltaY -= mMotionCorrection; 2937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2938637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2939637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int oldScroll = mScrollY; 2940637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int newScroll = oldScroll - incrementalDeltaY; 2941637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int newDirection = y > mLastY ? 1 : -1; 2942637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2943637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection == 0) { 2944637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 2945637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2946637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2947637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection != newDirection) { 2948637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Coming back to 'real' list scrolling 2949637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell incrementalDeltaY = -newScroll; 2950637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 2951637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2952637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // No need to do all this work if we're not going to move anyway 2953637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (incrementalDeltaY != 0) { 2954637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 2955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we are back in 2958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 2959637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2962637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // We did not scroll the full amount. Treat this essentially like the 2963637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // start of a new touch scroll 2964637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionPosition = findClosestMotionRow(y); 2965637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2966637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2967637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = getChildAt(motionPosition - mFirstPosition); 2968637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = motionView.getTop(); 2969637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2970637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2971637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2972637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2973637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, -incrementalDeltaY, 0, mScrollY, 0, 0, 2974637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2975637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2976637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2978637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 2979637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 2980637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) -incrementalDeltaY / getHeight()); 2981637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 2982637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 2983637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2984637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 2985637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) -incrementalDeltaY / getHeight()); 2986637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 2987637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 2988637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2989637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2990637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2991637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2992637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 2993637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 2994637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 2995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2996637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2997637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = y; 2998637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 2999637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3000637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3036005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3037005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3041079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 30466198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3049d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3050d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3051d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3052d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3053d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3055079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3062d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3063d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3064d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3065005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3066005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3067079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3070005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3071005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3075079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 30786198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 30796198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3080637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3081637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3082637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 30856198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3086637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 30876198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 30886198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 30896198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 30906198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 30916198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3092637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 309321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 309421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3101637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 31046198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 31056198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 31066198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 31076198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 31084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31096198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3110f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3111f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3112f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3113d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3114d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3115d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 31166198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 312279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3127637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3128637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3133637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 31510a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 31539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31701cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 31711cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 31721cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 31731cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 31741cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3180637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3181637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3182637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3183637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3184637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3185637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3187637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3188637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3189637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3206637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.recycle(); 3207637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker = null; 3208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 32164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 32174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 32204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 32214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 32224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 32234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 32244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 32254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 32264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 32274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 32284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 32294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 32314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 32389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell protected void onOverScrolled(int scrollX, int scrollY, 3240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean clampedX, boolean clampedY) { 3241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = scrollY; 3242637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (clampedY) { 3244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Velocity is broken by hitting the limit; don't start a fling off of this. 3245637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3246637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 3247637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3248637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3249637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell awakenScrollBars(); 3250637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3251637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3252637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3255637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3256637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3257637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3258637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 3259637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int width = getWidth(); 3260637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3261a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira canvas.translate(0, Math.min(0, scrollY + mFirstPositionDistanceGuess)); 3262a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3263637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 3264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3265637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3266637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3267637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 3270637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int width = getWidth(); 3271637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3273e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.translate(-width, Math.max(height, scrollY + mLastPositionDistanceGuess)); 3274e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3275a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3276637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 3277637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3278637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3279637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3280637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3281637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3283637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3284637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3285637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3286637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3287637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3288637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3289637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3290637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3291637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3292637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 33000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33070a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 33084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 331079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3311637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3312637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3313637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3314637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 33174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 33184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 33194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 332179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 33239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 33259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 33289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 33299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 33309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 333379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 33344b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 33354b4f40f84e72579417604143e5f42115769649b8Romain Guy } 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 33424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 33434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 33544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 33604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 33614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 33624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 33694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 33704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 33714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 33724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 33734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 33744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 33754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 33764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 33774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 33784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 33804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 33814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 33824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 33834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 34019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 34029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 34039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 34049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 34069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 34129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 34139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 34179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 34200046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 34279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3435637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3442d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3443d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3444d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3445d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3446637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3447d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3448d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3449d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3450d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3451d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3452d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3453d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3454d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (scroller.isScrollingInDirection(0, yvel)) { 3455d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3456d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3457d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3458d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3459d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3460b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3461d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3462d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3463d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3464d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3465d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3466d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 346779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 347179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34851cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 34861cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 34871cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 34881cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3490458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3491637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3492637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3493637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3494637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3495637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3496637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3497637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3498637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 3502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int min = mScrollY > 0 ? Integer.MIN_VALUE : 0; 3503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int max = mScrollY > 0 ? 0 : Integer.MAX_VALUE; 3504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, min, max, 0, getHeight()); 3505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3508637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3509637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3510637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3511637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3512637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3513637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3514637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3515637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3516637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3517637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3518637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3519637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3520637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3521637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3522637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3523637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3524637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3525637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3526637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3527458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 3528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3529458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 3530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3531458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 3532458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3533458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3534458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3535d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3537458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 353879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3539d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 3540458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 3541458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 3542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 354321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 354421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 354521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3546d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 35475e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 35485e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 35495e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 35505e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 35515e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3552d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3553d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3554d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3555d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 355979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 356079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3561d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 35634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3564d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3565d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3566d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3567d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3568d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 357079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 357179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 357279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 357379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3575637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3576637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3577637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 35789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3580637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 35829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3599d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3603d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 3612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 3613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 3619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36203cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 36213cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 36223cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 3623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 3627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 3629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 3634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 3635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 3636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 3637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3638d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 3640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 3641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 3642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 3651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int deltaY = scroller.getCurrY() - scrollY; 3653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 3654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 3655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell startSpringback(); 3656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3670458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 36724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3674458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3677e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 36784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3679458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3680458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3682458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 368452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3685e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3686e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 36874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 3693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3694458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 36954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36964bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 36974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (position <= firstPos) { 3698458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3699458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3703458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3705458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3709458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3710458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3711458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3713458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3714458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3715458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 37164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 3721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3724458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 37284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37294bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3730fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3731458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3733458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3734458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3735458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3737458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3739458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3740458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3741458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3742458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3743458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3744458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3745458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3746fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3747458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3748458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3749458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3750458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3751458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3752458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3753458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3754458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3755458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3756458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3757458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3759458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3760458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3770458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3771458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3772458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3773458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3774458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 37754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3777458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3778e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3779e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 3780322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 3781322171b333a1c796fcc1428a96ea1d854a3881faErik } 3782322171b333a1c796fcc1428a96ea1d854a3881faErik 3783322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 3784e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 3785e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 3786e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 3787e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 3788e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 3789e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3790e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 3791371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3792371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3793e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 37944bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3795e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3796e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 3797e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3798e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 3799e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3800e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3801e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3802322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 3803e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 3804e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3805e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3806371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 38074ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 3808322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3809322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 3810371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 3811234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3812e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3813e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3814e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3816458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3817458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3818e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3819458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3820371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3821371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 3822371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 3823371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3824458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3825458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 38264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3827458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3830458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 38314e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38320b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 38330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 38340b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3835458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3836458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3845458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3846029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3847458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3848029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3849458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3850458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3851458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 38527e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3853458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3855458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3858458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3859458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3860029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 38614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3862029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3863029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3865458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3866458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 3869458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3871458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3872458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 3875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3876458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 38787e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3883458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3885458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 38864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 3887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3895458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3900458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 39010b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 39020b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 39030b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3904458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3905029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3907029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 3908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 3910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 39117e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 3912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3913458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3914458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3915458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 3918458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 3919458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 3920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3921458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3922458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 3923458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3933458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 39357e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 3936458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 3937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3938458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 3940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 3941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 3942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 3943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3948e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 3949234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 3950234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 3951234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 3952234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 3953234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 3954e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3955371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 3956234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3957234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 3958e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 3959371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3960e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3961e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3962371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(-getHeight(), mScrollDuration); 3963e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3964e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3965371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(getHeight(), mScrollDuration); 3966e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3967e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3968e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3969e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3970234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 3971234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 3972234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 3973e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3974e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 3975e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3976e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 3978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3979458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 39844bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 39854bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 39864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 39874bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 39884bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 39894bede9e425875542976a422222510fa4056a8339Romain Guy */ 39904bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 39914bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 39924bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 39934bede9e425875542976a422222510fa4056a8339Romain Guy } 39944e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 39954bede9e425875542976a422222510fa4056a8339Romain Guy } 399621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 399721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 399821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 399921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 40004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 400121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 400221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 400321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 400421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 400521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 40064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40074bede9e425875542976a422222510fa4056a8339Romain Guy /** 4008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4018322171b333a1c796fcc1428a96ea1d854a3881faErik 4019322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4020322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4021322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4022322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4023322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4024322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4025322171b333a1c796fcc1428a96ea1d854a3881faErik * 4026322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4027322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4028322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4029322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4030322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4031322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4032322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4033322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4034322171b333a1c796fcc1428a96ea1d854a3881faErik } 4035322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4036322171b333a1c796fcc1428a96ea1d854a3881faErik } 4037322171b333a1c796fcc1428a96ea1d854a3881faErik 4038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4039e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4040e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4041e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4042e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4043e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4044e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4045e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4046e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4047e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4048e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4049e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4050e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4051e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4052e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4053e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4054e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4055e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4056e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 40604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4062458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4064458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 4078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4081299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 4082299acb581205b6574bfa91824b1b887e265c4c40Marc Blank if (distance != 0) { 40830046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4084299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 40850046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell } else { 40860046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mFlingRunnable.endFling(); 4087299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4090499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4091499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4092499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4093499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4094499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4095499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4096499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4097499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4098499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4099499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4100499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4101499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4102499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4103499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4104499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4105499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4106499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4107499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4108499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4109499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4110499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4111499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4112499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4113499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4114499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4115499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4116499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4117499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4118499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4119499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4120499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4121499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4122499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4123499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4124499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4125499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 41356dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 41366dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 41376dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 41386dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 41396dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 41406dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 41416dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 41426dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 41436dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 41446dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 41456dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 41466dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 41476dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 41486dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 41496dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 41509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41516dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 41529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 41569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 41589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 41599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 41619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 41639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 41649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4165458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 41669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 41699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 41709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 41729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4173bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4174bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4175bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4176bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4177bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4178bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4179bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4180bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4181bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4182bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 41839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4184bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4185bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 41869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 41879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 41899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 41909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 41919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 41939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 41969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 41979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 41999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4201458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 42029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4205bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4206637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4207637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4209637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4210bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0 && firstTop >= listPadding.top && incrementalDeltaY >= 0) { 4216458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 4217458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 4218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && 4222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell incrementalDeltaY <= 0) { 4223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 4224458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 4225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4226458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4228458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 42299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4230029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4231029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4232029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4233029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4235458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4236458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 42379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4238458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 42409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4241458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 42428c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 42438c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 42448c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 42458c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4248458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4251458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4253458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4254079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4255458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4264458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 42658c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 42668c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 42678c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 42688c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4269458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4270458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4271458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4274458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4276458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4277458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4278079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4280458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4281458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4282458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4283458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4288458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4289458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4290458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4292458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4294458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4296458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4297458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 42989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4300458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4301458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43024e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4303458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 43049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4305458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4306458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4307458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4309458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4310029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 43112a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 43122a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4313079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4314079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4315079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4316079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4317079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4318079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 43192a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4320079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4321079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4322029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4323029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 4327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 43284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 43379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 43409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 43449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 43459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 43479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 43499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 43509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 43639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4364ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4365ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4366ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 43679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 43689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 43699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 43719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 43729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 4373079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 43749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 43839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 43849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 43964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4402637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4403637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4404637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4405637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4406637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4407637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4408637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4409637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4410637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4411637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4412637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4413637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4414637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4415637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4416637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 44179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 44189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 44219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 44229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 44239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 44249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44254e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 44264e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 44274e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown * If there is a selection returns true. 44284e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown * Otherwise resurrects the selection and returns false. 44294e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 44304e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown boolean ensureSelectionOnMovementKey() { 44314e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown if (mSelectedPosition < 0) { 44324e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown resurrectSelection(); 44334e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown return false; 44344e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 44354e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown return true; 44364e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 44429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 44529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 44549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 44559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 44609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 44649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 44679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 44699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 44709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 44719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 44739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 44749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 44759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 44769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 44779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 44789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 44819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 44829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 45069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 45079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 45089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 45109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 45119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 45139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 45159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 45169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 45179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 45189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 45229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 45239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 45249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 45259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 45319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 4532371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell removeCallbacks(mPositionScroller); 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 45349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 45359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 45379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 45389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 45399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 45409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 45419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 45439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 45479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 45509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 45539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 45599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 45609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 45619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 45629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45630785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 45649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 45659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4566da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 4567da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 4568da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 4569da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 4570da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 4571da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 45720785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 45730785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int listBottom = getBottom() - getPaddingBottom(); 45740785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 45750785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 45760785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mFirstPosition + childCount >= mOldItemCount && lastBottom <= listBottom) { 45770785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 45780785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 45790785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 45800785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 45810785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 45820785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 45830785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 45849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 45869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 45879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 45889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 45899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 45939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 45989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 46019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 46029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 46049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 46089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 46099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 46109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 46119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 46389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 46399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 46429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 46469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 46499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 46559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 46629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 46759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 4676079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 46789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 468043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 468143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 468243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 468343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 468443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 468543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 468643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 468743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 468843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 468943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 469043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 469143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 469243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 469343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 469443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 469524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 469643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 469743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 46989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4701d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 47134df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 4714b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4720b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 472424443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 4727b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 47299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 47379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 47389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 47399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 47429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 47449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 47479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 47489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 47499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 47689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47734e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 47744e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 47754e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 47764e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 47774e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 47784e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 47794e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 47824e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 47834e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 4804b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 48129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 48169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 48179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 482083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 48218d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 48228d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 48238d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 482483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 482583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 482683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 482783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 482883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 482983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 4835cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4839b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 48409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 48419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 48439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 4844105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 48459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 48489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4866b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 4867b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4868b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4869b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4870c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 4871c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 4872c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 4873c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 4874c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 48751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 48761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 48771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 48781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 48791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 48801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 48811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 48821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 48831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 48841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 48861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 48871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 48881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 48891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 48901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 48911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 48921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 48931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 48941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 48951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 48961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 48981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 48991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 49001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 49011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 49021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 49031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 49041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 49051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 49061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 49071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 49081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 49091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 49101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 49111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 49121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 49131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 49141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 4915c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 4916c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 4917b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 49180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4919b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 4920b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 4921b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 4922b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4923b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4924b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 4925b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 4926b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 49270a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4928b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 49374df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 49384df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 4941b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 4942b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 4943b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 4944b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 4945b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 4946105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 4957d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 498924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 499443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 50031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 50101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 50111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5014c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 50231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 50299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 50309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 50349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 50411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 50995be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 51005be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 51015be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 51025be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 51035be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 510852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 510952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 511052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 511152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 511252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 511352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 511452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 511552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 514213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 515713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 515813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 515913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 516013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 516113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 516213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 516313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 516413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 516513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 516613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 516713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 516813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 516913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 517013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 517113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 517252964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 517313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 517413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 517513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 517613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 517713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 517813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 517913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 518013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 518113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 518213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 518313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 518413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 518513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 518613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 518713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 518813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 518913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 519013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 519113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 519213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 519313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 519413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 519513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 519613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 519713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 519813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 519913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 520052964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 520113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 520213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 520313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 520413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 520552964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 520613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 520713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 520813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 520913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 521013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 521113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 521213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 522013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5221499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5222499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5223499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5224499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5225499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 52269b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 52279b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 52283ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 52293ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 52303ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 52313ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 52323ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 52333ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 52343ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 52359b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 52369b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 52379b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5238499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5239499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5240499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5241499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5242499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5243499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5244499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterConnected() { 5245499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5246499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 5247fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5248fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 5249499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5250499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5251499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5252499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5253499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5254499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5255499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5256fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5257fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5258fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5259fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5260fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5261499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5262499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5263499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5279f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5280f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5281f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5282f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5283f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5284f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5285f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5286f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5287f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5288f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5289f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5290f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5291f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5292f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5293f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5294f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5295f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5296f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5297f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5298f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5299f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5300f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5301f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5302f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5303f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5304f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5305f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5306f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5307f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5308f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5309f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5310f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5311f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5312f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5313f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5314f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5315f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5316f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5317f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5318f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5319f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5320f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5321f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5322f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5323f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5324f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5325f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5326f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5327f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5328f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5329f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5330f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5331f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5332f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5333f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5334f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5335f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5336f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5337f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5338f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5339f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5340f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5341f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5342f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5343f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5344f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5345f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5346f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5347f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5355bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 53569bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 53579bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 53589bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53614df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 53624df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 53634df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 53644df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 53654df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 53664df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5367bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 53684df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 53694df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 53700bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 53710bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 53720bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 53730bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 53740bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 53750bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 53760bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 53770bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 5378bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 53790bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 53800bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 5381079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 5382079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 5383079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 5384079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 5385079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 5386079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 5387079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5474f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 5475f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 5476f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 5477f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5478f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 5479f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 5480f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5481f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 5482f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 5483f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 5484f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 5485f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5486f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 5487f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 5488f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5489f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5490f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5491f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 54920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 55109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 55359c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 55379c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 55404df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5568079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 5572079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5583079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 55939b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 55949b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 55959b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5599079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = position; 5600079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5602a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5605a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 56209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 5624a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 5627079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 5628079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 5629079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56339b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 56359b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 56369b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 56379b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5644a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 5645079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 56659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 56689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 56699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 56719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 56749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 56779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 56869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 569752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 569852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 569952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 570052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 570152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 570252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 570352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 570452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 570552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 570652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 570752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 570852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 570952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 571052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 571152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 571252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 571352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 571452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 571552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 5716266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 571752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 571852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 571952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 572052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 572152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 572252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 572352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 572452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 572552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 572652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 572752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 572852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 572952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5731079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5732079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 5733079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 5734079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 5735079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 5736079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 5737079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 5738079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 5739079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 5740079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 5741079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 5742079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5743079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5744079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 5745079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5746079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 5747079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5748079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5750