AbsListView.java revision becb0be2bb769e819774d32d6f9e4f6b31668157
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; 4633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 50f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 59b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 60b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 68d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 69d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 70d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 81f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 85499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 86499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1040a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1410a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which IDs are currently checked 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> mCheckedIdStates; 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 257499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 258499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 259499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 260499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 261499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 272079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * Set to true if we would like to have the selector showing itself. 273079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * We still need to draw and position it even if this is false. 274079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 275079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn boolean mSelectorShowing; 276079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 277079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 278079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 279079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 280079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 281079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 282079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3380211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 3904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 394458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4620b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 472637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4881cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 4891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 4901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 4911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 4921cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 4931cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 4941cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 4951cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 4961cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5050a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 517d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 518d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 519d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 520d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 521d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 548d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 550d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5556dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5566dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5574296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5584296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 55921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 56121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 56324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 56424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 56524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 5786dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 580637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private EdgeGlow mEdgeGlowTop; 596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private EdgeGlow mEdgeGlowBottom; 601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 622da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 623da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 624da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 625da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 626da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 62707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 62807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 62907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 630da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 679e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 680e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 681e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 682e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 683e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 684e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 685e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 686e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 687e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 688e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 689e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 690e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 691e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 692e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 693e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 694e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7390a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 746f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 74720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 74820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 749f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 753d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 754d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 755df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 756d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 757d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 758d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 759d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 760d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 7614296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 7624296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 7634296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 7644296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 768d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 769d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 7700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 7754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 7764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira final Resources res = context.getResources(); 777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable edge = res.getDrawable(R.drawable.overscroll_edge); 778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable glow = res.getDrawable(R.drawable.overscroll_glow); 7794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowTop = new EdgeGlow(context, edge, glow); 7804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowBottom = new EdgeGlow(context, edge, glow); 781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 789d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 790f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 791f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 792f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 793f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 796f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 798f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 799f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 800f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 801f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final LongSparseArray<Boolean> idStates = mCheckedIdStates; 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 990bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1014bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1036bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1037bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1038bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1101637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11032bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11042bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11064ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11074ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 113420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 113520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 113620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 113720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 113820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 113920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 114020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 114120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 114220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 114320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 114420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 114520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 114620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 114720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 114820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 114920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 115020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 115120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 115220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 115420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 115520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 115620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 115820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 115920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 116020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 116120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 116220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 116320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 116420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 116520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 116620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 116720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 116820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 116920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 117016bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 117120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 117220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 117420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 117620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 118620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 118720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 118820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 118920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 119020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 119120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 11960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12570a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 13246bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1380a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 13812614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1382f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 1383f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> checkIdState; 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1403a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 14042614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1405f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 1406f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell long[] idState = in.createLongArray(); 1407f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1408f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (idState.length > 0) { 1409f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState = new LongSparseArray<Boolean>(); 1410f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState.setValues(idState, Boolean.TRUE); 1411f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1423a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 14242614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1425f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 1426f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1438f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1439f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1458f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 146899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14797becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 14807becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 14817becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 14827becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 14837becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 14847becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 14857becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 14867becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 14877becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 14887becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 149199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 149299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 149399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 149499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 149599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 149699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1515a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1516a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 1517f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkState = mCheckStates; 1518f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkIdState = mCheckedIdStates; 15192614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1520f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1543079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1553f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1554f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1555f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1556f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1557f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1558f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1559f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1560f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15612614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 15622614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1563a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1564a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1565a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1566a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1567a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1572d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1573d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 15790a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16050a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1643079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 1644079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16880b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 16890b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 17090b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 17100b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 17110b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1712637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1713637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1714637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1715637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 17160b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 17170b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 17180b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 17190b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1768da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1769da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1770da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1771da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1772da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int listBottom = getBottom() - getPaddingBottom(); 1773da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1774da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1775da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mOldItemCount && 1776da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1777da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1780d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1781d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1782d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1783d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1788f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1789f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1790f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1791f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1792f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1793f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1794f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 17952c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 17962c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 17972c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 17982c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1799f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1813d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1814d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1815d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1816d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1817d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1818d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1819d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1820d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1826d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1827d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1828d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 193121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 193221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 19334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 193621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 193721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 1957079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 196521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1966a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1967a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1983079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 1984079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 1985079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 1986079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1987079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 1990e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 1991e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 1992e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 1999079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelectorShowing) { 2000079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2001079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 204220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 204320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 204420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 204520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 204620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 204720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 204820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 204920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 205020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 205120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 205220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 205320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 205420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 205520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 205620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 205720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 205820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 205920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 206020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 206120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 206220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 206320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 206420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 206520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 206620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2072d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2105079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2149079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2167df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2168df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2169df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2170df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2174079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2178ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2179ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2180ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2181ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2188df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2189df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2209079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2210079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2211079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2212079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2213079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2214079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2215079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2216079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2217079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2218079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2222079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22550a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2265e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2266e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2267e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2268e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2269e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2270e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 22750e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 22760e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 22770e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 228082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 228182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 228282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 22836a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 22846a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 22856a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 22866a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 22876a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 228882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22951f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 22961f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 22971f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 229821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 229921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 230021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 23020e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 23030e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 23040e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeGlobalOnLayoutListener(this); 23050e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 230782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 230882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 230982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 231082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 231182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 23121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 23141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 23151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 23161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 23171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 23191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 23201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 23211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2322d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2323d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2324d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2325d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2326d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2327d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 23284032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2329d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2330d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2331d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2332d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2333d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2334d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2335d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2336d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2337d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2338d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2339d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2340d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2341d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2342d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2353670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2354670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2355670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2356670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2357670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 23584032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 23594032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 23604032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2361458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 23630fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2364637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2365458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2367670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 237697566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 24220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24310a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2440005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2441005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2442005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2443005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2444005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 24457890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 24467890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 24477890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 24487890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 24497890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 24507890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 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); 2652e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26780a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 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 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2689637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2690637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 2692637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2728637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2729637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 2730637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 2731637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 2732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27344032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 27354032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 27364032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 27400fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2750dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2751dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2752dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2753dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2754dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2755dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 276282f3495b146b267f3786997752cef25310176349Romain Guy 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 2775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 2776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 2777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 27784032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 27794032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 27804032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 2783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 2789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 2791637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 2792637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 2793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 2794637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 2795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 27960a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 27970a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 27980a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 2799637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 2800637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 2801637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 2802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 2803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 2805637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 28070a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // If we couldn't find a view to click on, but the down event 28080a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // was touching the edge, we will bail out and try again. 28090a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // This allows the edge correcting code in ViewRoot to try to 28100a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // find a nearby view to select 2811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return false; 2812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 2815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 2816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 2817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 2820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 2821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28229d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 282379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28249d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 2825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 2826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 2827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 2828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 2829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 2831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 2834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 28414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 28424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28601cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan == null) { 28611cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick // If it's non-null, we're already in a scroll. 28621cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 28631cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 28641cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2866110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2867110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2868110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2869110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2870110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2871110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2872110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2873110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 2874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2877a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 2878637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionIndex; 2879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mMotionPosition >= 0) { 2880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = mMotionPosition - mFirstPosition; 2881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // If we don't have a motion position that we can reliably track, 2883637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // pick something in the middle to make a best guess at things below. 2884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = getChildCount() / 2; 2885637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2887637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionViewPrevTop = 0; 2888637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(motionIndex); 2889637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2890637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionViewPrevTop = motionView.getTop(); 2891637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2892637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 28936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 28956198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 28976198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2900637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = this.getChildAt(motionIndex); 2901637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check if the top of the motion view is where it is 2903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // supposed to be 2904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionViewRealTop = motionView.getTop(); 2905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEdge) { 2906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Apply overscroll 2907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overscroll = -incrementalDeltaY - 2909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (motionViewRealTop - motionViewPrevTop); 2910637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 2911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 2913637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 2914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 2915637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2917637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2918637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2920637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 2921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = 0; // Reset when entering overscroll. 2922637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2923637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 2924637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) overscroll / getHeight()); 2925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 2926637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 2927637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2928637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 2929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 2930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 2931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 2932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2933637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 293579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2936b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2937b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 293879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 293979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 294079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 294179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 2942637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2943637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 2944637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (y != mLastY) { 2945637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 2946637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell deltaY -= mMotionCorrection; 2947637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2948637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2949637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int oldScroll = mScrollY; 2950637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int newScroll = oldScroll - incrementalDeltaY; 2951637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int newDirection = y > mLastY ? 1 : -1; 2952637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2953637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection == 0) { 2954637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 2955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection != newDirection) { 2958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Coming back to 'real' list scrolling 2959637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell incrementalDeltaY = -newScroll; 2960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 29610fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentIfNeeded(); 2962637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2963637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // No need to do all this work if we're not going to move anyway 2964637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (incrementalDeltaY != 0) { 2965637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 2966637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2967637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2968637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we are back in 2969637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 2970637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2971637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2972637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2973637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // We did not scroll the full amount. Treat this essentially like the 2974637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // start of a new touch scroll 2975637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionPosition = findClosestMotionRow(y); 2976637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2978637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = getChildAt(motionPosition - mFirstPosition); 2979637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = motionView.getTop(); 2980637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2981637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2982637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2983637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2984637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, -incrementalDeltaY, 0, mScrollY, 0, 0, 2985637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2986637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2987637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2988637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2989637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 2990637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 2991637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) -incrementalDeltaY / getHeight()); 2992637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 2993637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 2994637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 2996637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) -incrementalDeltaY / getHeight()); 2997637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 2998637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 2999637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3000637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3001637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3002637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 3004637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 3005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 3006637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3007637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3008637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = y; 3009637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 3010637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3011637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3024498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3025498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3026498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3027498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3028498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 30469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3050005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3051005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3055079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 30606198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3063d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3064d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3065d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3066d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3067d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3069079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3073d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3076d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3077d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3078d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3079005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3080005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3081079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3084005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3085d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3089079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 30926198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 30936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3094637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 30996198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 31016198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 31026198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 31036198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 31046198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 31056198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 310721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 310821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3115637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3117637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 31186198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 31196198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 31206198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 31216198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 31224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31236198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3124f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3125f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3126f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3127d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3128d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3129d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 31304032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 31314032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 31324032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 31336198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 313979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 31680a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31871cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 31881cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 31891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 31901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 31911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3206637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3209637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3210637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.recycle(); 3224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker = null; 3225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 32334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 32344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 32374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 32384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 32394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 32404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 32414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 32424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 32434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 32444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 32454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 32464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 32484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32509bc30d31322848d61f518c1db43544988faaba8fAdam Powell 32519bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 32529bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 32539bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 32549bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 32559bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 32569bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 32579bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 32589bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 32599bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 32609bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 32619bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 32629bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 32639bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 32649bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 32659bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 32669bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 32679bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 32689bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 32699bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 32709bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32770a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 32780a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 32790a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 32800a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 32810a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 32820a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 32830a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (clampedY) { 32840a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // Velocity is broken by hitting the limit; don't start a fling off of this. 32850a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mVelocityTracker != null) { 32860a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mVelocityTracker.clear(); 32870a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne } 3288637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32890a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3290637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3291637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3292637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3293637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 329433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 329533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 329633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 329733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 329833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 329933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 330033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 330133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3302275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 330333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 330433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 330533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 330633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 330733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 330833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 330933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 331033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 331133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 331233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 331333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 33149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3316637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3317637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3318637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3319637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 332007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 332107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 332207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3323637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 332407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(leftPadding, 33257d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.min(0, scrollY + mFirstPositionDistanceGuess)); 3326a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3327637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 3328637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3329637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3330637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3331637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3332637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3333637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 333407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 333507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 333607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3337637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3338637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 333907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(-width + leftPadding, 33407d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.max(height, scrollY + mLastPositionDistanceGuess)); 3341e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3342a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3343637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 3344637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3345637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3346637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3347637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3348637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3350637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3351637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3352637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3353637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3354637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3355637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3356637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3357637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3358637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3359637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 336307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 336407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 336507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 336607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 336707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 336807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 336907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 337007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 33750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 33834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 338579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3388637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3389637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 33924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 33934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 33944e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 339679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 33989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 33999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 34009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 34019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 34029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 34039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 34049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 34059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 34069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 340879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 34094b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 34104b4f40f84e72579417604143e5f42115769649b8Romain Guy } 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 34169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 34174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 34184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 34294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 34354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 34364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 34374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 34444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 34454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 34464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 34474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 34484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 34494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 34504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 34514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 34524cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 34534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3454637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 34554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 34564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 34920046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3514d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3515d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3516d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3517d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3518637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3519d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3520d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3521d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3522d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3523d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3524d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3525d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3526d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (scroller.isScrollingInDirection(0, yvel)) { 3527d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3528d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3529d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3530d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3531d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3532b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3533d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3534d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3535d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3536d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3537d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3538d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 353979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3540637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 354379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35571cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 35581cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 35591cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 35601cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3562458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3563637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3564637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3565637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3566637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3567637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3568637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3570e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3571637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3572637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3574637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 3575637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int min = mScrollY > 0 ? Integer.MIN_VALUE : 0; 3576637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int max = mScrollY > 0 ? 0 : Integer.MAX_VALUE; 3577637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, min, max, 0, getHeight()); 3578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3580637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35954032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 35964032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 35974032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 35984032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 35994032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3605458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 3606458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3607458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 3608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3609458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 3610458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3611458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3612458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3613d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3615458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 361679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3617d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 361821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 361921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 362021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3621d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 36225e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 36235e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 36245e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 36255e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 36265e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3627d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3628d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3629d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3630d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 363479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 363579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3636d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3639d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3640d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3641d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3642d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3643d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 364579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 364679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 364779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 364879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3666637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3673637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3674d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3675637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3676637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3677637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3678d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3679637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3680637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3681637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3682637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3683637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3684637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3685637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3686637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 3687637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 3688637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3689637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3690637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3691637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3692637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3693637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 3694637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36953cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 36963cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 36973cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 3698637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3699637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3700637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3701637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 3702637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3703637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 3704637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3705637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3706637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3707637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3708637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 3709637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 3710637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 3711637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 3712637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3713d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3714637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 3715637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 3716637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 3717637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3720637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3721637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3722637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3723637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3724637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3725637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 3726637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int deltaY = scroller.getCurrY() - scrollY; 3728637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 3729637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 3730637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell startSpringback(); 3731637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3734637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3735637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3745458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3746458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 37474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3748458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3749458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3750458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3751458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3752e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 37534e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3754458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3755458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3756458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3757458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 375952964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3760e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3761e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 37624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 37684032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 37694032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3770458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3771458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 37724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37734bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 37744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (position <= firstPos) { 3775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3777458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3778458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3779458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3780458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3781458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3782458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3783458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3790458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3792458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 37934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3794458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3795458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 37984032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 37994032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3800458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3801458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3802458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3803458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3805458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3806458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 38074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38084bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3809fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3810458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3811458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3812458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3813458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3814458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3816458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3817458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3818458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3819458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3820458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3821458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3822458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3823458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3824458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3825fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3826458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3827458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3830458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3833458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3835458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3836458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3846458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3847458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3848458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3849458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3850458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3851458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3852458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3853458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 38544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3855458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3857e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3858e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 3859322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 3860322171b333a1c796fcc1428a96ea1d854a3881faErik } 3861322171b333a1c796fcc1428a96ea1d854a3881faErik 3862322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 38634032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 38644032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3865e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 3866e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 3867e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 3868e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 3869e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 3870e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3871e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 3872371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3873371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3874e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 38754bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3876e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3877e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 3878e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3879e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 3880e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3881e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3882e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3883322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 3884e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 3885e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3886e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3887371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 38884ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 3889322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3890322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 3891371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 3892234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3893e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3894e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3895e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3899e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3900458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3901371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3902371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 3903371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 3904371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 39074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3911458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 39124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39130b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 39140b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 39150b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3916458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3918458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3919458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3921458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3922458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3923458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3927029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3929029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 39337e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3935458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3936458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3941029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 39424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3943029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3944029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 3950458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3955458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 3956458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 39597e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 39674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 3968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3979458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 39820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 39830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 39840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3985458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3986029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3988029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 3989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 3991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 39927e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 3993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 3999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 4015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 40167e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 4017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 4018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 4021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 4023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 4024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4029e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4030234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4031234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 4032234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 4033234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4034234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4035e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4036371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4037234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4038234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4039e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4040371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4041e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 40424032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4043e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 40444032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 40454032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 40464032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 40474032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 40484032252c997be9f5d013054dc23ace855007b3a5Adam Powell 40494032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 40504032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 40514032252c997be9f5d013054dc23ace855007b3a5Adam Powell 40524032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 40534032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 40544032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (-getHeight() * modifier), mScrollDuration); 4055e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4056e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 40574032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (getHeight() * modifier), mScrollDuration); 4058e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4059e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4060e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4061e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4062234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 4063234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 4064234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 4065e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4066e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4067e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4068e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 40764bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 40774bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 40784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 40794bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 40804bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 40814bede9e425875542976a422222510fa4056a8339Romain Guy */ 40824bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 40834bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 40844bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 40854bede9e425875542976a422222510fa4056a8339Romain Guy } 40864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 40874bede9e425875542976a422222510fa4056a8339Romain Guy } 408821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 408921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 409021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 409121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 40924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 409321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 409421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 409521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 409621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 409721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 40984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40994bede9e425875542976a422222510fa4056a8339Romain Guy /** 4100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4103458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4110322171b333a1c796fcc1428a96ea1d854a3881faErik 4111322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4112322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4113322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4114322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4115322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4116322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4117322171b333a1c796fcc1428a96ea1d854a3881faErik * 4118322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4119322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4120322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4121322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4122322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4123322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4124322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4125322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4126322171b333a1c796fcc1428a96ea1d854a3881faErik } 4127322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4128322171b333a1c796fcc1428a96ea1d854a3881faErik } 4129322171b333a1c796fcc1428a96ea1d854a3881faErik 4130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4131e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4132e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4133e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4134e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4135e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4136e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4137e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4138e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4139e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4140e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4141e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4142e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4143e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4144e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4145e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4146e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4147e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4148e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 41524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4154458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4158458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4165458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 4170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41734032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4174299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 41754032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 41764032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 41774032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 41784032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 41794032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 41804032252c997be9f5d013054dc23ace855007b3a5Adam Powell 418179303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 41824032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 41834032252c997be9f5d013054dc23ace855007b3a5Adam Powell (lastPos == mItemCount - 1 && 41844032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 41854032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 41864032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 41874032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 41884032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 41894032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 41900046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4191299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 4192299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4195499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4196499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4197499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4198499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4199499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4200499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4201499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4202499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4203499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4204499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4205499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4206499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4207499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4208499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4209499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4210499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4211499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4212499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4213499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4214499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4215499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4216499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4217499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4218499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4219499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4220499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4221499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4222499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4223499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4224499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4225499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4226499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4227499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4228499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4229499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4230499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 42319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 42329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 42350211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 42369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 42406dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 42416dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 42426dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 42436dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 42440211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = false; 42456dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 42466dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 42476dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 42486dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 42496dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 42506dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 42516dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 42526dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 42536dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 42546dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 42559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42566dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 42619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 42669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 42689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 42699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4270458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 42719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 42749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 42759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 42779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4278bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4279bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4280bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4281bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4282bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4283bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4284bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4285bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4286bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4287bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4289bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4290bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 42929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 42949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 42969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 42979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 42989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 43029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 43049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4306458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4308637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4309637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4310bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4311637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4312637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4313637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4314637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4315bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4316637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4317637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4318637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4319637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 43200a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 43210a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 43220a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 43230a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 43249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43250a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4331029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4332029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4333029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4334029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4336458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4339458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4340458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 43419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 43438c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 43448c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 43458c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 43468c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4347458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4348458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4349458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4350458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4351458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4352458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4353458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4355079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4356458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4357458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4358458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4359458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4364458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4365458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 43668c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 43678c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 43688c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 43698c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4371458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4372458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4373458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4374458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4375458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4378458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4379079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4380458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4381458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4382458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4383458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4384458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4395458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4397458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4398458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4400458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4401458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44034e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 44059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4406458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 44099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4410458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4411029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 44122a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 44132a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4414079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4415079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4416079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4417079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4418079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4419079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 44202a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4421079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4422079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4423029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4424029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4425458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4426458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4427458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 4428458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 44294e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4430458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 44319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 44359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 44369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 44559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 44579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 44609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 44649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4465ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4466ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4467ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 44699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 44709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 44729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 44739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 4474079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 44759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 44809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 44819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 44829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 44974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4508637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4509637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4510637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4511637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4512637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4513637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4514637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4515637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4516637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4517637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 45189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 45199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 45219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 45229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 45239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 45249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 45259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45264e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 45274e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 45288d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 45298d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 45304e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 45318d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 4532becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 4533becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 4534becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 45354e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 45368d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 45374e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 45389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 45419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 45439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 45509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 45539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 45599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 45609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 45619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 45629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 45639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 45649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 45659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 45689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 45709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 45759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 45769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 45779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 45789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 45799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 45829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 45839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 45849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 45859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 45869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 45879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 45899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 45939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 46019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 46089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 46099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 46119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 46334032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 46344032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 46354032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 46379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 46389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 46399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 46419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 46429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 46469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 46489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 46559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 46629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46660785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4669da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 4670da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 4671da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 4672da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 4673da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 4674da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 46750785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 46760785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int listBottom = getBottom() - getPaddingBottom(); 46770785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 46780785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 46790785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mFirstPosition + childCount >= mOldItemCount && lastBottom <= listBottom) { 46800785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 46810785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 46820785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 46830785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 46840785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 46850785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 46860785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 46879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 46959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 46969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 47299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 47319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 47379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 47389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 47399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 47429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 47459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 47499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 4779079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 478343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 478443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 478543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 478643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 478743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 478843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 478943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 479043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 479143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 479243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 479343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 479443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 479543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 479643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 479743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 479824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 479943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 480043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4804d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 48129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 48164df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 4817b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4823b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 48249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 482724443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 48289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 4830b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 48409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 48419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 48429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 48449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 48459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 48469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 48579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48764e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 48774e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 48784e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 48794e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 48804e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 48814e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 48824e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 48854e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 48864e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 4907b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 492383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 49248d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 49258d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 4926b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 4927b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 4928b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 4929b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 493083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 493183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 493283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 493383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 493483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 493583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 4941cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4945b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 4950105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4972b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 4973b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4974b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4975b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4976c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 4977c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 4978c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 4979c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 4980c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 49811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 49821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 49831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 49841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 49851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 49861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 49871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 49881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 49891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 49901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 49911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 49921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 49931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 49941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 49951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 49961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 49971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 49981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 49991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 50001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 50011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 50021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 50041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 50061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 50081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 50091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 50101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 50111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 50121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 50131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 50141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 50161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 50181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 50191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 50201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5021c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5022c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5023b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 50240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5025b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5026b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5027b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5028b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5029b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5030b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5031b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5032b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 50330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5034b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 50434df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 50444df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5047b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5048b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5049b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5050b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5051b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5052105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5063d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 509524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 510043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 51091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 51161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 51171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5120c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 51291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 51471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 52055be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 52065be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 52075be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 52085be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 52095be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 521452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 521552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 521652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 521752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 521852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 521952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 522052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 522152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52307b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 524913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 526413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 526513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 526613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 526713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 526813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 526913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 527013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 527113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 527213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 527313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 527413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 527513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 527613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 527713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 527813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 527952964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 528013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 528113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 528213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 528313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 528413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 528513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 528613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 528713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 528813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 528913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 529013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 529113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 529213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 529313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 529413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 529513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 529613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 529713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 529813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 529913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 530013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 530113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 530213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 530313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 530413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 530513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 530613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 530752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 530813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 530913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 531013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 531113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 531252964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 531313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 531413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 531513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 531613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 531713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 531813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 531913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5320637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5321637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5322637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5323637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5324637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5325637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 532713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5328499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5329499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5330499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5331499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5332499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 53339b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 53349b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 53353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 53363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 53373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 53383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 53393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 53403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 53413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 53429b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 53439b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 53449b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5345499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5346499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5347499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5348499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5349499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5350499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 535116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5352499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5353499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 535416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5355fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5356fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 535716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5358499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 535916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5360499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5361499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5362499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5363499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5364499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5365499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5366fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5367fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5368fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5369fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5370fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5371499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5372499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5373499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5388b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5389b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5390b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5391b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5392b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5393b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5394b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5395b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5396b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5397b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5398b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5399b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5400b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5401b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5402b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5403b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5404b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5405b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5407f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5408f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5409f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5410f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5411f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5412f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5413f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5414f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5415f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5416f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5417f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5418f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5419f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5420f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5421f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5422f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5423f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5424f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5425f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5426f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5427f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5428f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5429f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5430f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5431f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5432f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5433f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5434f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5435f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5436f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5437f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5438f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5439f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5440f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5441f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5442f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5443f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5444f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5445f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5446f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5447f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5448f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5449f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5450f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5451f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5452f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5453f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5454f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5455f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5456f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5457f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5458f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5459f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5460f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5461f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5462f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5463f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5464f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5465f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5466f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5467f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5468f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5469f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5470f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5471f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5472f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5473f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5474f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5475f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5483bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 54849bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 54859bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 54869bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54894df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 54904df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 54914df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 54924df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 54934df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 54944df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5495bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 54964df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 54974df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 54980bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 54990bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 55000bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 55010bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 55020bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 55030bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 55040bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 55050bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 5506bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 55070bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 55080bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 5509079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 5510079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 5511079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 5512079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 5513079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 5514079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 5515079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5602f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 5603f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 5604f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 5605f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5606f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 5607f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 5608f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5609f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 5610f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 5611f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 5612f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 5613f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5614f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 5615f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 5616f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5617f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5618f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5619f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 56200a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 56579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 56639c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 56649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 56659c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 56684df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 56699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 56859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 56869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5696079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 56979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 5700079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 57089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5711079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 57129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 57139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 57149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 57159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 57219b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 57229b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 57239b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5727079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = position; 5728079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5730a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5733a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 5752a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 5755079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 5756079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 5757079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57619b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 57639b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 57649b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 57659b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5772a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 5773079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 57899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 57949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 58029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 582552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 582652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 582752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 582852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 582952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 583052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 583152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 583252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 583352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 583452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 583552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 583652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 583752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 583852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 583952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 584052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 584152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 584252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 584352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 5844266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 584552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 584652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 584752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 584852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 584952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 585052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 585152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 585252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 585352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 585452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 585552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 585652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 585752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 58589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5859079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5860079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 5861079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 5862079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 5863079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 5864079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 5865079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 5866079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 5867079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 5868079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 5869079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 5870079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5871079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5872079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 5873079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5874079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 5875079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5876079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 58779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5878