AbsListView.java revision e0fd2eb2f143b2776b5e1a4e88144fddadd149b1
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; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport 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; 321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.Parcelable; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport 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; 3752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.AttributeSet; 38f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.Log; 39539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam 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.KeyEvent; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Menu; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 50f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MotionEvent; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 5713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.inputmethod.BaseInputConnection; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 59a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.inputmethod.InputConnection; 60a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.inputmethod.InputConnectionWrapper; 610b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.inputmethod.InputMethodManager; 620b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport java.util.ArrayList; 64b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport java.util.List; 65b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project 661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn/** 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Base class that can be used to implement virtualized lists of items. A list does 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not have a spatial definition here. For instance, subclases of this class can 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * display the content of the list in a grid, in a carousel, as stack, etc. 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 73d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @attr ref android.R.styleable#AbsListView_stackFromBottom 74d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @attr ref android.R.styleable#AbsListView_scrollingCache 75d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @attr ref android.R.styleable#AbsListView_textFilterEnabled 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_choiceMode 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnTouchModeChangeListener, 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RemoteViewsAdapter.RemoteAdapterConnectionCallback { 86f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 90499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @see #setTranscriptMode(int) 91499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 939d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy /** 94539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The list will automatically scroll to the bottom when a data set change 95539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * notification is received and only if the last item is already visible 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * are currently visible. 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy static final int TOUCH_MODE_REST = -1; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we just received the touch event and we are waiting to see if the it is a tap or a 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira static final int TOUCH_MODE_OVERSCROLL = 5; 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is being flung outside of normal content bounds 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and will spring back. 1490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy */ 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_OVERFLING = 6; 151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Regular layout - usually an unsolicited layout from the view system 154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int LAYOUT_NORMAL = 0; 156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Show the first item 159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int LAYOUT_FORCE_TOP = 1; 161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Normal list that does not indicate choices 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CHOICE_MODE_NONE = 0; 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list allows up to one choice 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int CHOICE_MODE_SINGLE = 1; 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which IDs are currently checked 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> mCheckedIdStates; 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls how the next layout will happen 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mLayoutMode = LAYOUT_NORMAL; 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 24514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 24614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Should be used by subclasses to listen to changes in the dataset 24714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell AdapterDataSetObserver mDataSetObserver; 24914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The adapter containing the data to be displayed by this view 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The remote adapter containing the data to be displayed by this view to be set 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RemoteViewsAdapter mRemoteAdapter; 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 267499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 268499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Drawable mSelector; 269499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 270499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Set to true if we would like to have the selector showing itself. 272539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * We still need to draw and position it even if this is false. 273539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 274539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mSelectorShowing; 275539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 276539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2772148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * The current position of the selector in the list. 2782148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2792148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen int mSelectorPosition = INVALID_POSITION; 2802148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2812148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 292079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 293079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The selection's left padding 294079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 295079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectionLeftPadding = 0; 296079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3520211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles scrolling between positions within the list. 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private PositionScroller mPositionScroller; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira boolean mStackFromBottom; 405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 406458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * When set to true, the list automatically discards the children's 4081fa179ef41c06bd19da70fd9bf95741238791940Adam Powell * bitmap cache after scrolling. 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4270a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy /** 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maximum distance to record overscroll 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mOverscrollMax; 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Content height divided by this is the overscroll limit. 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int OVERSCROLL_LIMIT_DIVISOR = 3; 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira private static final int TOUCH_MODE_OFF = 1; 4760b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 477637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 478637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private static final boolean PROFILE_SCROLLING = false; 480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean mScrollProfilingStarted = false; 481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private static final boolean PROFILE_FLINGING = false; 483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean mFlingProfilingStarted = false; 484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * The StrictMode "critical time span" objects to catch animation 48714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * stutters. Non-null when a time-sensitive animation is 48814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * in-flight. Must call finish() on them when done animating. 48914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * These are no-ops on user builds. 49014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 49114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private StrictMode.Span mScrollStrictSpan = null; 49214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private StrictMode.Span mFlingStrictSpan = null; 49314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * Acts upon click 5111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private AbsListView.PerformClick mPerformClick; 5131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * Delayed action for touch mode. 5161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private Runnable mTouchModeReset; 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Indicates that this list is always drawn on top of a solid, single-color, opaque 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 538d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 539d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 540d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 541d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 542d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Helper object that renders and controls the fast scroll thumb. 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mGlobalLayoutListenerAddedFilter; 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTouchSlop; 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private InputConnection mDefInputConnection; 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private InputConnectionWrapper mPublicInputConnection; 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mClearScrollingCache; 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mMinimumVelocity; 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mMaximumVelocity; 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mVelocityScale = 1.0f; 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean[] mIsScrap = new boolean[1]; 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // True when the popup should be hidden because of a call to 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // dispatchDisplayHint() 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mPopupHidden; 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * ID of the active pointer. This is used to retain consistency during 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * drags/flings if multiple pointers are used. 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 569d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mActivePointerId = INVALID_POINTER; 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 571d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sentinel value for no current active pointer. 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used by {@link #mActivePointerId}. 5741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn */ 5751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private static final int INVALID_POINTER = -1; 5766dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5776dfed24158b8fc9150abee23992db621cd82aa43Romain Guy /** 5784296fc4d326447875c26a925f12b3935632f13bbRomain Guy * Maximum distance to overscroll by during edge effects 5794296fc4d326447875c26a925f12b3935632f13bbRomain Guy */ 58021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy int mOverscrollDistance; 5814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy /** 5834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * Maximum distance to overfling during edge effects 58424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy */ 58524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy int mOverflingDistance; 58624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy 5874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira // These two EdgeGlows are always set and used together. 5884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Checking one for null is as good as checking both. 5894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 5904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Tracks the state of the top edge glow. 5924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira private EdgeGlow mEdgeGlowTop; 5944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 5954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Tracks the state of the bottom edge glow. 5974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private EdgeGlow mEdgeGlowBottom; 5996dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 61689935e41c593a599e8955388b27fb926e60e5e94Adam Powell */ 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 62189935e41c593a599e8955388b27fb926e60e5e94Adam Powell * the bottom correctly on resizes. 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean mForceTranscriptScroll; 624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Interface definition for a callback to be invoked when the list or grid 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * has been scrolled. 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public interface OnScrollListener { 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * The view is not scrolling. Note navigating the list using the trackball counts as 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * being in the idle state since these transitions are not animated. 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public static int SCROLL_STATE_IDLE = 0; 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * The user is scrolling using touch, and their finger is still on the screen 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public static int SCROLL_STATE_TOUCH_SCROLL = 1; 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 643da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * The user had previously been scrolling using touch and had performed a fling. The 644da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * animation is now coasting to a stop 645da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 646da13dbae6fe0619101433ac861da460b8be63a36Adam Powell public static int SCROLL_STATE_FLING = 2; 647da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 64807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 64907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * Callback method to be invoked while the list view or grid view is being scrolled. If the 65007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * view is being scrolled, this method will be called before the next frame of the scroll is 6514e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov * rendered. In particular, it will be called before any calls to 6524e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov * {@link Adapter#getView(int, View, ViewGroup)}. 6534e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov * 654da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * @param view The view whose scroll state is being reported 655b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * 656b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 657a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 658b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 659b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell public void onScrollStateChanged(AbsListView view, int scrollState); 660ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 661ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 662ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Callback method to be invoked when the list or grid has been scrolled. This will be 663ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * called after the scroll has completed 664ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * @param view The view whose scroll state is being reported 6650b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * @param firstVisibleItem the index of the first visible cell (ignore if 6660b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * visibleItemCount == 0) 6670b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * @param visibleItemCount the number of visible cells 6680b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * @param totalItemCount the number of items in the list adaptor 6690b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top-level view of a list item can implement this interface to allow 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * itself to modify the bounds of the selection shown for that item. 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface SelectionBoundsAdjuster { 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Called to allow the list item to adjust the bounds shown for 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * its selection. 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param bounds On call, this contains the bounds the list has 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selected for the item (that is the bounds of the entire view). The 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * values can be modified as desired. 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void adjustListItemSelectionBounds(Rect bounds); 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 718e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 719e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 720e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn setStackFromBottom(stackFromBottom); 721e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 722e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 723e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn setScrollingCacheEnabled(scrollingCacheEnabled); 724e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 725e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 726e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn setTextFilterEnabled(useTextFilter); 727e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 728e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 729e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn TRANSCRIPT_MODE_DISABLED); 730e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn setTranscriptMode(transcriptMode); 731e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 732e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 733e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn setCacheColorHint(color); 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollAlwaysVisible( 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void initAbsListView() { 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Setting focusable in touch mode will set the focusable property to true 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setClickable(true); 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFocusableInTouchMode(true); 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setWillNotDraw(false); 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setAlwaysDrawnWithCacheEnabled(false); 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(true); 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewConfiguration configuration = ViewConfiguration.get(mContext); 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchSlop = configuration.getScaledTouchSlop(); 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOverscrollDistance = configuration.getScaledOverscrollDistance(); 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOverflingDistance = configuration.getScaledOverflingDistance(); 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDensityScale = getContext().getResources().getDisplayMetrics().density; 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOverScrollMode(int mode) { 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mode != OVER_SCROLL_NEVER) { 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEdgeGlowTop == null) { 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context context = getContext(); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Resources res = context.getResources(); 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable edge = res.getDrawable(R.drawable.overscroll_edge); 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable glow = res.getDrawable(R.drawable.overscroll_glow); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEdgeGlowTop = new EdgeGlow(context, edge, glow); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEdgeGlowBottom = new EdgeGlow(context, edge, glow); 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7780a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mEdgeGlowTop = null; 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEdgeGlowBottom = null; 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.setOverScrollMode(mode); 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira /** 785f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 78620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 78720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 788f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter != null) { 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCheckedIdStates == null) { 792d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mCheckedIdStates = new LongSparseArray<Boolean>(); 793d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 794df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 795d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 796d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mCheckStates != null) { 797d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mCheckStates.clear(); 798d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 799d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8004296fc4d326447875c26a925f12b3935632f13bbRomain Guy if (mCheckedIdStates != null) { 8014296fc4d326447875c26a925f12b3935632f13bbRomain Guy mCheckedIdStates.clear(); 8024296fc4d326447875c26a925f12b3935632f13bbRomain Guy } 8034296fc4d326447875c26a925f12b3935632f13bbRomain Guy } 804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 805637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Returns the number of items currently selected. This will only be valid 807d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 808d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * 8090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * <p>To determine the specific items that are currently selected, use one of 810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the <code>getChecked*</code> methods. 811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The number of items currently selected 813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 8144e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * @see #getCheckedItemPosition() 81589935e41c593a599e8955388b27fb926e60e5e94Adam Powell * @see #getCheckedItemPositions() 81689935e41c593a599e8955388b27fb926e60e5e94Adam Powell * @see #getCheckedItemIds() 817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public int getCheckedItemCount() { 819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return mCheckedItemCount; 820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 823637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Returns the checked state of the specified position. The result is only 824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 825d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * or {@link #CHOICE_MODE_MULTIPLE}. 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 831539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * @see #setChoiceMode(int) 832539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 83414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final LongSparseArray<Boolean> idStates = mCheckedIdStates; 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 92914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 97614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mDataChanged = true; 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean dispatchItemClick = true; 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 100814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell position, id, newValue); 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell dispatchItemClick = false; 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1027bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell rememberSyncState(); 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 103129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (dispatchItemClick) { 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled |= super.performItemClick(view, position, id); 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 103914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * @see #setChoiceMode(int) 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1052bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell * 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 105429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * {@link #CHOICE_MODE_MULTIPLE} 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 106214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 106829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 107129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell clearChoices(); 107229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell setLongClickable(true); 107329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1076bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell 1077bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell /** 1078bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 108429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * @see #setChoiceMode(int) 108529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 108629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 108729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (mMultiChoiceModeCallback == null) { 108829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 108929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 109029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell mMultiChoiceModeCallback.setWrapped(listener); 109129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 109229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 109329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 109429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * @return true if all list content currently fits within the view boundaries 109529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 109629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private boolean contentFits() { 109729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int childCount = getChildCount(); 109829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (childCount != mItemCount) { 109929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell return false; 110029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 110129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 110229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell return getChildAt(0).getTop() >= 0 && getChildAt(childCount - 1).getBottom() <= mBottom; 110329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 110429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 110529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Enables fast scrolling by letting the user quickly scroll through lists by 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * dragging the fast scroll thumb. The adapter attached to the list may want 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * jump between sections of the list. 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see SectionIndexer 1111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #isFastScrollEnabled() 1112f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param enabled whether or not to enable fast scrolling 1113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1114f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setFastScrollEnabled(boolean enabled) { 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mFastScrollEnabled = enabled; 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (enabled) { 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mFastScroller == null) { 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mFastScroller = new FastScroller(getContext(), this); 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mFastScroller != null) { 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mFastScroller.stop(); 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mFastScroller = null; 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set whether or not the fast scroller should always be shown in place of the 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 1131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * already enabled. 113414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setScrollBarStyle(int) 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setFastScrollEnabled(boolean) 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (alwaysShow && !mFastScrollEnabled) { 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setFastScrollEnabled(true); 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mFastScroller != null) { 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell computeOpaqueFlags(); 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell recomputePadding(); 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * fade out when not in use. 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return true if the fast scroller will always show. 1157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isFastScrollAlwaysVisible() { 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 1161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 1164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public int getVerticalScrollbarWidth() { 11652bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (isFastScrollAlwaysVisible()) { 11662bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 1167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 11684ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return super.getVerticalScrollbarWidth(); 11694ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell } 1170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Returns the current state of the fast scroll feature. 11730a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setFastScrollEnabled(boolean) 11740a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @return true if fast scroll is enabled, false otherwise 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy @ViewDebug.ExportedProperty 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setVerticalScrollbarPosition(int position) { 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.setVerticalScrollbarPosition(position); 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.setScrollbarPosition(position); 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11940a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy protected boolean isVerticalScrollBarHidden() { 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 119620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 119820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 119920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 120020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * is computed based on the number of visible pixels in the visible items. This 120120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * however assumes that all list items have the same height. If you use a list in 120220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * which items have different heights, the scrollbar will change appearance as the 120320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * user scrolls through the list. To avoid this issue, you need to disable this 120420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * property. 120520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 120620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 120720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * is based solely on the number of items in the adapter and the position of the 120820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * visible items inside the adapter. This provides a stable scrollbar as the user 120920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * navigates through a list of items with varying heights. 121020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 121120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param enabled Whether or not to enable smooth scrollbar. 121220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 121320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setSmoothScrollbarEnabled(boolean) 121420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @attr ref android.R.styleable#AbsListView_smoothScrollbar 121520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 121620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setSmoothScrollbarEnabled(boolean enabled) { 121720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mSmoothScrollbarEnabled = enabled; 121820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 121920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 122120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns the current state of the fast scroll feature. 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return True if smooth scrollbar is enabled is enabled, false otherwise. 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 122520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setSmoothScrollbarEnabled(boolean) 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @ViewDebug.ExportedProperty 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isSmoothScrollbarEnabled() { 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mSmoothScrollbarEnabled; 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123216bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell /** 123320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set the listener that will receive notifications every time the list scrolls. 123420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 123520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param l the scroll listener 123620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 123720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setOnScrollListener(OnScrollListener l) { 123820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mOnScrollListener = l; 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 124820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mOnScrollListener != null) { 125020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 125120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 125220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 125320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 125420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 125520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Indicates whether the children's drawing cache is used during a scroll. 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @return true if the scrolling cache is enabled, false otherwise 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @param enabled true to enable the scroll cache, false otherwise 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy */ 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (view != null && view.getParent() == this) { 13190a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // the focused rectangle of the selected view offset into the 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 1322a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov offsetDescendantRectToMyCoords(view, r); 13234e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 13244e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // otherwise, just the norm 13254e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.getFocusedRect(r); 13264e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13274e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 1328d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov 1329d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov private void useDefaultSelector() { 1330d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov setSelector(getResources().getDrawable( 1331d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov com.android.internal.R.drawable.list_selector_background)); 13324e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13334e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 1334d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov /** 1335d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov * Indicates whether the content of this view is pinned to, or stacked from, 13364e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov * the bottom edge. 13374e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov * 13384e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov * @return true if the content is stacked from the bottom edge, false otherwise 13394e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov */ 13404e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov @ViewDebug.ExportedProperty 13418a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public boolean isStackFromBottom() { 13428a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov return mStackFromBottom; 13438a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13448a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13458a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov /** 13468a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov * When stack from bottom is set to true, the list fills its content starting from 13478a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov * the bottom of the view. 13488a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov * 13498a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov * @param stackFromBottom true to pin the view's content to the bottom edge, 13508a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov * false to pin the view's content to the top edge 13518a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov */ 13528a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void setStackFromBottom(boolean stackFromBottom) { 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean inActionMode; 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int checkedItemCount; 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SparseBooleanArray checkState; 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LongSparseArray<Boolean> checkIdState; 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project inActionMode = in.readByte() != 0; 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkedItemCount = in.readInt(); 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkState = in.readSparseBooleanArray(); 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long[] idState = in.createLongArray(); 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (idState.length > 0) { 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkIdState = new LongSparseArray<Boolean>(); 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkIdState.setValues(idState, Boolean.TRUE); 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 14176bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy out.writeByte((byte) (inActionMode ? 1 : 0)); 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(checkedItemCount); 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeSparseBooleanArray(checkState); 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " filter=" + filter 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " checkState=" + checkState + "}"; 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * popups, but there don't seem to be any other useful hooks 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1473a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (haveChildren && mFirstPosition > 0) { 14742614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell // Remember the position of the first child. 1475f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // We only do this if we are not currently at the top of 147614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // the list, for two reasons: 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (1) The list may be in the process of becoming empty, in 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // which case mItemCount may not be 0, but if we try to 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ask for any information about position 0 we will crash. 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (2) Being "at the top" seems like a special case, anyway, 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and the user wouldn't expect to end up somewhere else when 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // they revisit the list even if its content has changed. 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int firstPos = mFirstPosition; 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPos >= mItemCount) { 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstPos = mItemCount - 1; 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = firstPos; 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(firstPos); 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1496a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 14972614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1498f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.filter = null; 149943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (mFiltered) { 150043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final EditText textFilter = mTextFilter; 150114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (textFilter != null) { 150243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn Editable filterText = textFilter.getText(); 150343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (filterText != null) { 150443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn ss.filter = filterText.toString(); 150543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn } 150614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1507f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.checkState = mCheckStates; 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.checkIdState = mCheckedIdStates; 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.checkedItemCount = mCheckedItemCount; 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1519a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell public void onRestoreInstanceState(Parcelable state) { 15202614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell SavedState ss = (SavedState) state; 1521f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 152243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn super.onRestoreInstanceState(ss.getSuperState()); 152343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn mDataChanged = true; 152443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn 152543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn mSyncHeight = ss.height; 152643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn 152714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (ss.selectedId >= 0) { 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorPosition = INVALID_POSITION; 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1539f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mSyncRowId = ss.firstId; 1540f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mSyncPosition = ss.position; 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.checkState != null) { 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCheckStates = ss.checkState; 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.checkIdState != null) { 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCheckedIdStates = ss.checkIdState; 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCheckedItemCount = ss.checkedItemCount; 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMultiChoiceModeCallback != null) { 1559f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled && getAdapter() instanceof Filterable && 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((Filterable) getAdapter()).getFilter() != null; 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 156999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 15807becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // This is going to call our listener onTextChanged, but we might not 15817becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // be ready to bring up a window yet 15827becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn mTextFilter.setText(filterText); 15837becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn mTextFilter.setSelection(filterText.length()); 15847becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (mAdapter instanceof Filterable) { 15857becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // if mPopup is non-null, then onTextChanged will do the filtering 15867becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (mPopup == null) { 15877becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn Filter f = ((Filterable) mAdapter).getFilter(); 15887becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn f.filter(filterText); 15897becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn } 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 159299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn mFiltered = true; 159399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn mDataSetObserver.clearSavedState(); 159499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 159599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 159699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 159799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the list's text filter, if available. 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1616a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 1617a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell @Override 16189a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell public void requestLayout() { 16199a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (!mBlockLayoutRequests && !mInLayout) { 16209a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell super.requestLayout(); 16219a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 162214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 16239a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell 16249a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell /** 16259a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell * The list is empty. Clear everything out. 16269a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell */ 16279a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell void resetList() { 16289a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell removeAllViewsInLayout(); 16292614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mFirstPosition = 0; 1630f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = false; 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorShowing = false; 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorPosition = INVALID_POSITION; 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 1653079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (height > 0) { 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1663f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1664f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return extent; 1665f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1666f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return 1; 1667f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1668f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1669f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return 0; 1670f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 16712614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 16722614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell @Override 1673a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell protected int computeVerticalScrollOffset() { 1674a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell final int firstPosition = mFirstPosition; 1675a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell final int childCount = getChildCount(); 1676a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (firstPosition >= 0 && childCount > 0) { 1677a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (mSmoothScrollbarEnabled) { 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 1682d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return Math.max(firstPosition * 100 - (top * 100) / height + 1683d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 16890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy index = 0; 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int result; 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result = Math.max(mItemCount * 100, 0); 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollY != 0) { 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Compensate for overscroll 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result = mItemCount; 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return result; 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 17240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy return 1.0f; 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 1729b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 1730b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 1731b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 1732b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 1733b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell @Override 1734b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell protected float getBottomFadingEdgeStrength() { 1735b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell final int count = getChildCount(); 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 1760079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn listPadding.right = mSelectionRightPadding + mPaddingRight; 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if our previous measured size was at a point where we should scroll later. 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int listBottom = getBottom() - getPaddingBottom(); 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View lastChild = getChildAt(childCount - 1); 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mForceTranscriptScroll = mFirstPosition + childCount >= mOldItemCount && 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lastBottom <= listBottom; 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses should NOT override this method but 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #layoutChildren()} instead. 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (changed) { 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(i).forceLayout(); 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.markChildrenDirty(); 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null && mItemCount != mOldItemCount) { 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18040b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell protected boolean setFrame(int left, int top, int right, int bottom) { 18050b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell final boolean changed = super.setFrame(left, top, right, bottom); 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (changed) { 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reposition the popup when the frame has changed. This includes 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // translating the widget, not just changing its dimension. The 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // filter popup needs to follow the widget. 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean visible = getWindowVisibility() == View.VISIBLE; 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionPopup(); 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must override this method to layout their children. 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18250b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 18260b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell void updateScrollIndicators() { 18270b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mScrollUp != null) { 1828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean canScrollUp; 1829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // 0th element is not visible 1830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canScrollUp = mFirstPosition > 0; 1831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 18320b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell // ... Or top of 0th element is not visible 18330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (!canScrollUp) { 18340b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (getChildCount() > 0) { 18350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell View child = getChildAt(0); 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 1884da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * 1885da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * @see android.view.View#getPaddingBottom() 1886da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * @see #getSelector() 1887da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * 1888ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * @return The bottom list padding. 1889da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 1890da13dbae6fe0619101433ac861da460b8be63a36Adam Powell public int getListPaddingBottom() { 1891ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell return mListPadding.bottom; 1892da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 1893da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 1896d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * 1897d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see android.view.View#getPaddingLeft() 1898d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #getSelector() 1899d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 1904f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1905f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 1906f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell /** 1907f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell * List padding is the maximum of the normal view's padding and the padding of the selector. 1908f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell * 1909f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell * @see android.view.View#getPaddingRight() 1910f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell * @see #getSelector() 19112c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell * 19122c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell * @return The right list padding. 19132c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell */ 19142c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell public int getListPaddingRight() { 1915f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell return mListPadding.right; 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1918637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Get a view and have it show the data associated with the specified 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param isScrap Array of at least 1 boolean, the first entry will become true if 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the returned view was taken from the scrap heap, false if otherwise. 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 1929d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 1930d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy View obtainView(int position, boolean[] isScrap) { 1931d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy isScrap[0] = false; 1932d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy View scrapView; 1933d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 1934d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy scrapView = mRecycler.getScrapView(position); 1935d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 1936d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy View child; 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1942d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 1943d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy child = mAdapter.getView(position, scrapView, this); 1944d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(scrapView, position); 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project isScrap[0] = true; 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.dispatchFinishTemporaryDetach(); 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void positionSelector(int position, View sel) { 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position != INVALID_POSITION) { 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorPosition = position; 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel instanceof SelectionBoundsAdjuster) { 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectorShowing) { 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 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 if (clipToPadding) { 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isPaddingOffsetRequired() { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int getLeftPaddingOffset() { 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int getTopPaddingOffset() { 204721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 204821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } 20494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int getRightPaddingOffset() { 205221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 205321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2056539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell protected int getBottomPaddingOffset() { 2057539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 2058539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2059539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 2060539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell @Override 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20724213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov /** 20734213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov * @return True if the current touch mode requires that we draw the selector in the pressed 20744213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov * state. 20754213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov */ 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2082079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn default: 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 209021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the pressed state for an item. 2091a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy * 2092a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy * @return True if the selector should be shown 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 20964213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 20974213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 20984213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov private void drawSelector(Canvas canvas) { 20994213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (!mSelectorRect.isEmpty()) { 21004213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov final Drawable selector = mSelector; 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 2110aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 2111aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell * is false. 2112aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell * 2113aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 2114aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell */ 2115aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell public void setDrawSelectorOnTop(boolean onTop) { 2116aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell mDrawSelectorOnTop = onTop; 2117aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2118aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2119aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell /** 2120aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell * Set a Drawable that should be used to highlight the currently selected item. 2121aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell * 2122aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell * @param resID A Drawable resource to use as the selection highlight. 2123aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell * 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 2127079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn setSelector(getResources().getDrawable(resID)); 2128079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2129079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 2130079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn public void setSelector(Drawable sel) { 2131079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 2134e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2135e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn mSelector = sel; 2136e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn Rect padding = new Rect(); 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2143a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer updateSelectorState(); 2144079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2145079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isEnabled() || !isClickable()) { 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && !selectorRect.isEmpty()) { 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) { 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v.hasFocusable()) return; 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(true); 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition( 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewConfiguration.getLongPressTimeout()); 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 218620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 218720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 218820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (longClickable && !mDataChanged) { 218920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mPendingCheckForKeyLongPress == null) { 219020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 219120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 219220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 219320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 219420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 219520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 219620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 219720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 219820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setScrollIndicators(View up, View down) { 219920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mScrollUp = up; 220020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mScrollDown = down; 220120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 220220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 220320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell void updateSelectorState() { 220420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mSelector != null) { 220520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (shouldShowSelector()) { 220620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mSelector.setState(getDrawableState()); 220720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } else { 220820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mSelector.setState(StateSet.NOTHING); 220920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 221020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2216d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy updateSelectorState(); 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2249079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void jumpDrawablesToCurrentState() { 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.jumpDrawablesToCurrentState(); 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) mSelector.jumpToCurrentState(); 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnGlobalLayoutListener(this); 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null && mDataSetObserver == null) { 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver = new AdapterDataSetObserver(); 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAdapter.registerDataSetObserver(mDataSetObserver); 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Data may have changed while we were detached. Refresh. 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldItemCount = mItemCount; 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mItemCount = mAdapter.getCount(); 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Dismiss the popup in case onSaveInstanceState() was not invoked 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 2293079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Detach any view left in the scrap heap 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.clear(); 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mPopup != null) { 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeGlobalOnLayoutListener(this); 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGlobalLayoutListenerAddedFilter = false; 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null) { 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mAdapter.unregisterDataSetObserver(mDataSetObserver); 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver = null; 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2311df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (mScrollStrictSpan != null) { 2312df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy mScrollStrictSpan.finish(); 2313df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy mScrollStrictSpan = null; 2314df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFlingStrictSpan != null) { 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingStrictSpan.finish(); 2318079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mFlingStrictSpan = null; 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFlingRunnable != null) { 2322ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project removeCallbacks(mFlingRunnable); 2323ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 2324ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project 2325ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (mPositionScroller != null) { 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPositionScroller.stop(); 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mClearScrollingCache != null) { 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mClearScrollingCache); 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2332df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2333df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (mPerformClick != null) { 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mPerformClick); 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchModeReset != null) { 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mTouchModeReset); 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchModeReset = null; 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFlingRunnable != null) { 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 2353079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // let the fling runnable report it's new state which 2354079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // should be idle 2355079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mFlingRunnable.endFling(); 2356079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mPositionScroller != null) { 2357079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mPositionScroller.stop(); 2358079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2359079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mScrollY != 0) { 2360079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mScrollY = 0; 2361079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn finishGlows(); 2362079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn invalidate(); 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 2366079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn dismissPopup(); 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered && !mPopupHidden) { 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 23990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * methods knows the view, position and ID of the item that received the 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 2409e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn return new AdapterContextMenuInfo(view, position, id); 2410e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2411e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2412e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 2413e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * A base class for Runnables that will check that their view is still attached to 2414e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * the original window as when the Runnable was created. 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 24190e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne 24200e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne public void rememberWindowAttachCount() { 24210e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mOriginalAttachCount = getWindowAttachCount(); 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 242482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy public boolean sameWindow() { 242582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 242682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 24276a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell } 24286a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 24296a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell private class PerformClick extends WindowRunnnable implements Runnable { 24306a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell int mClickMotionPosition; 24316a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 243282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy public void run() { 2433b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // The data has changed since we posted this action in the event queue, 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mClickMotionPosition; 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter != null && mItemCount > 0 && 24401f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy motionPosition != INVALID_POSITION && 24411f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy motionPosition < adapter.getCount() && sameWindow()) { 24421f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy performItemClick(getChildAt(motionPosition - mFirstPosition), motionPosition, 244321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy adapter.getItemId(motionPosition)); 244421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } 244521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24470e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne 24480e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne private class CheckForLongPress extends WindowRunnnable implements Runnable { 24499d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 24500e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne final int motionPosition = mMotionPosition; 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 245282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (child != null) { 245382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy final int longPressPosition = mMotionPosition; 245482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy final long longPressId = mAdapter.getItemId(mMotionPosition); 245582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 245682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy boolean handled = false; 24571cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (sameWindow() && !mDataChanged) { 24581cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick handled = performLongPress(child, longPressPosition, longPressId); 24591cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 24601cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (handled) { 24611cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mTouchMode = TOUCH_MODE_REST; 24621cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick setPressed(false); 24631cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick child.setPressed(false); 24641cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } else { 24651cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mTouchMode = TOUCH_MODE_DONE_WAITING; 24661cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2467d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2468d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2469d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2470d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2471d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 2472d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn public void run() { 24734032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (isPressed() && mSelectedPosition >= 0) { 2474d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn int index = mSelectedPosition - mFirstPosition; 2475d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn View v = getChildAt(index); 2476d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2477d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (!mDataChanged) { 2478d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn boolean handled = false; 2479d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (sameWindow()) { 2480d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 2481d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2482d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (handled) { 2483d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn setPressed(false); 2484d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn v.setPressed(false); 2485d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2486d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } else { 2487d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn setPressed(false); 2488b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (v != null) v.setPressed(false); 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean performLongPress(final View child, 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mChoiceActionMode == null) { 2499670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 2500670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner setItemChecked(longPressPosition, true); 2501670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 2502670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // TODO Should we select the long pressed item if we were already in 2503670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // selection mode? (i.e. treat it like an item click?) 25044032252c997be9f5d013054dc23ace855007b3a5Adam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 25054032252c997be9f5d013054dc23ace855007b3a5Adam Powell return true; 25064032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2508458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean handled = false; 25090fd89bf7221431260883cee4597e2db942d799a0Romain Guy if (mOnItemLongClickListener != null) { 2510637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 2511458034799861fef47e00d85d528b4dac5e00bd51Adam Powell longPressPosition, longPressId); 2512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2513670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (!handled) { 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 252297566043afdb714fd4eea6bb22898964e95f16bcAdam Powell 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyDown(int keyCode, KeyEvent event) { 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isEnabled()) { 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isClickable() && isPressed() && 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition >= 0 && mAdapter != null && 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25680a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy final View view = getChildAt(mSelectedPosition - mFirstPosition); 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (view != null) { 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performItemClick(view, mSelectedPosition, mSelectedRowId); 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.setPressed(false); 25720a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25770a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2586005c0a445e32dfbf18bf93d209da857604925a58Adam Powell 2587005c0a445e32dfbf18bf93d209da857604925a58Adam Powell /** 2588005c0a445e32dfbf18bf93d209da857604925a58Adam Powell * Maps a point to a position in the list. 2589005c0a445e32dfbf18bf93d209da857604925a58Adam Powell * 2590005c0a445e32dfbf18bf93d209da857604925a58Adam Powell * @param x X in local coordinate 25917890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy * @param y Y in local coordinate 25927890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy * @return The position of the item which contains the specified point, or 25937890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy * {@link #INVALID_POSITION} if the point does not intersect an item. 25947890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy */ 25957890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy public int pointToPosition(int x, int y) { 25967890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy Rect frame = mTouchFrame; 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 26230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy */ 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(mMotionPosition, child); 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26478350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 2649f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 2650f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mSelector != null) { 26511e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell Drawable d = mSelector.getCurrent(); 26521e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (d != null && d instanceof TransitionDrawable) { 2653f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (longClickable) { 26541e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell ((TransitionDrawable) d).startTransition(longPressTimeout); 2655f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 2656f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ((TransitionDrawable) d).resetTransition(); 2657f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2659f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 2679fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown // Check if we have moved far enough that it looks more like a 2680fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown // scroll than a tap 2681fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int distance = Math.abs(deltaY); 2682fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final boolean overscroll = mScrollY != 0; 2683fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (overscroll || distance > mTouchSlop) { 2684fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown createScrollingCache(); 2685fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 2686fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mMotionCorrection = deltaY; 2687fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final Handler handler = getHandler(); 2688fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown // Handler should not be null unless the AbsListView is not attached to a 2689fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown // window, which would make it very hard to scroll it... but the monkeys 2690fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown // say it's possible. 2691fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (handler != null) { 2692fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown handler.removeCallbacks(mPendingCheckForLongPress); 2693fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 2718df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy // touch mode). Force an initial layout to get rid of the selection. 2719df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy layoutChildren(); 2720df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2721df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } else { 2722df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy int touchMode = mTouchMode; 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFlingRunnable != null) { 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingRunnable.endFling(); 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2727dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (mPositionScroller != null) { 2728dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mPositionScroller.stop(); 2729dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2730df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2731dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (mScrollY != 0) { 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollY = 0; 2733dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy finishGlows(); 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 273545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 273645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 273745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 273845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2742dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // A disabled view that is clickable still consumes the touch 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // events, it just doesn't respond to them. 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return isClickable() || isLongClickable(); 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action & MotionEvent.ACTION_MASK) { 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_OVERFLING: { 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingRunnable.endFling(); 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPositionScroller != null) { 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPositionScroller.stop(); 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_OVERSCROLL; 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = mLastY = (int) ev.getY(); 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = 0; 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActivePointerId = ev.getPointerId(0); 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: { 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActivePointerId = ev.getPointerId(0); 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int x = (int) ev.getX(); 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int y = (int) ev.getY(); 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = pointToPosition(x, y); 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && (getAdapter().isEnabled(motionPosition))) { 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). It might be a 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // click or a scroll. Assume it is a click until proven otherwise 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME Debounce 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForTap == null) { 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap = new CheckForTap(); 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we couldn't find a view to click on, but the down event was touching 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the edge, we will bail out and try again. This allows the edge correcting 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // code in ViewRoot to try to find a nearby view to select 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_FLING) { 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Stopped a fling. It is a scroll. 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_SCROLL; 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = 0; 2809079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn motionPosition = findMotionRow(y); 2810079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mFlingRunnable.flywheelTouch(); 2811e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell } 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionPosition >= 0) { 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int pointerIndex = ev.findPointerIndex(mActivePointerId); 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int y = (int) ev.getY(pointerIndex); 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 28370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy case TOUCH_MODE_DONE_WAITING: 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 284478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 284778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollStrictSpan == null) { 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If it's non-null, we're already in a scroll. 285278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 285378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 285478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 285578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 285678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 285778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 285878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Math.abs(deltaY) > mTouchSlop) { 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int rawDeltaY = deltaY; 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionIndex; 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mMotionPosition >= 0) { 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionIndex = mMotionPosition - mFirstPosition; 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have a motion position that we can reliably track, 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // pick something in the middle to make a best guess at things below. 287413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka motionIndex = getChildCount() / 2; 287513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 287613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 287713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka int motionViewPrevTop = 0; 287878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionViewPrevTop = motionView.getTop(); 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // No need to do all this work if we're not going to move anyway 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean atEdge = false; 288578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 288678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 288778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 288878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 288978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 289078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 289178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 289278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 289378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 289478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 289578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 289678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 289778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 289878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 289978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 290078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 290178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 290278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 290378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 290478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 290578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 290678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 290778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 290878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 290978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 291078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 291178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 291278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 291378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 291478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 291578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 291678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 291778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 291878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 291978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 292078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 292178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 292278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 292778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown invalidate(); 292878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 293078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 293178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown break; 293278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 293378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown case TOUCH_MODE_OVERSCROLL: 293478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 293578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = deltaY; 293678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown deltaY -= mMotionCorrection; 293778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 293878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 293978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 294078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 294178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 294278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 294378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 294478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 294578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 294678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 294778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection != newDirection) { 294878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 294978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = -newScroll; 295078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollY = 0; 295178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 295278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 295378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 295478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 295578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 295678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 295778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we are back in 295878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 295978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 296078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 296178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 296278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 296378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 296478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 296578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 296678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 2967a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy motionView = getChildAt(motionPosition - mFirstPosition); 296878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView.getTop(); 296978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 297078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 297178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 2973a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy overScrollBy(0, -incrementalDeltaY, 0, mScrollY, 0, 0, 297478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 297578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 297678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 297778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 297878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 297978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 298078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) -incrementalDeltaY / getHeight()); 298178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 298278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 298378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 298478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 298578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) -incrementalDeltaY / getHeight()); 298678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 298778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 298878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 298978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown invalidate(); 299178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 299378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 299478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 299578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 299878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 299978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 300078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown break; 300178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 300278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 300378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown break; 300478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 300578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 300678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown case MotionEvent.ACTION_UP: { 300778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown switch (mTouchMode) { 300878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown case TOUCH_MODE_DOWN: 300978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown case TOUCH_MODE_TAP: 301078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown case TOUCH_MODE_DONE_WAITING: 3011a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy final int motionPosition = mMotionPosition; 301278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final View child = getChildAt(motionPosition - mFirstPosition); 301378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (child != null && !child.hasFocusable()) { 301478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode != TOUCH_MODE_DOWN) { 301578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown child.setPressed(false); 301678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3017a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy 301878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mPerformClick == null) { 301978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mPerformClick = new PerformClick(); 302078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 302178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 302278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final AbsListView.PerformClick performClick = mPerformClick; 302378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown performClick.mClickMotionPosition = motionPosition; 30249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy performClick.rememberWindowAttachCount(); 30259d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 30269d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mResurrectToPosition = motionPosition; 302778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 302878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 30299d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final Handler handler = getHandler(); 30309d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (handler != null) { 303178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 303278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mPendingCheckForTap : mPendingCheckForLongPress); 303378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 303478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLayoutMode = LAYOUT_NORMAL; 303578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 303678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_TAP; 303778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown setSelectedPositionInt(mMotionPosition); 303878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown layoutChildren(); 303978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown child.setPressed(true); 304078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown positionSelector(mMotionPosition, child); 304178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown setPressed(true); 304278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mSelector != null) { 304378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Drawable d = mSelector.getCurrent(); 304478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (d != null && d instanceof TransitionDrawable) { 304578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown ((TransitionDrawable) d).resetTransition(); 304678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 304778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 304878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchModeReset != null) { 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mTouchModeReset); 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchModeReset = new Runnable() { 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.run(); 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30611e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown }; 3062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mTouchModeReset, 3063637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell ViewConfiguration.getPressedStateDuration()); 3064637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell updateSelectorState(); 3067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30684032252c997be9f5d013054dc23ace855007b3a5Adam Powell return true; 30694032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 30704032252c997be9f5d013054dc23ace855007b3a5Adam Powell performClick.run(); 3071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 30740fd89bf7221431260883cee4597e2db942d799a0Romain Guy updateSelectorState(); 3075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_SCROLL: 3077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 3078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount > 0) { 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstChildTop = getChildAt(0).getTop(); 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int contentTop = mListPadding.top; 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int contentBottom = getHeight() - mListPadding.bottom; 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition == 0 && firstChildTop >= contentTop && 3084dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mFirstPosition + childCount < mItemCount && 3085dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy lastChildBottom <= getHeight() - contentBottom) { 3086dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mTouchMode = TOUCH_MODE_REST; 3087dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3088dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } else { 3089dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy final VelocityTracker velocityTracker = mVelocityTracker; 30901fa179ef41c06bd19da70fd9bf95741238791940Adam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 30911fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 30921fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int initialVelocity = (int) 30931fa179ef41c06bd19da70fd9bf95741238791940Adam Powell (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Fling if we have enough velocity and we aren't at a boundary. 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Since we can potentially overfling more than we can overscroll, don't 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // allow the weird behavior where you can scroll to a boundary then 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // fling further. 30980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (Math.abs(initialVelocity) > mMinimumVelocity && 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project !((mFirstPosition == 0 && 310082f3495b146b267f3786997752cef25310176349Romain Guy firstChildTop == contentTop - mOverscrollDistance) || 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (mFirstPosition + childCount == mItemCount && 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project lastChildBottom == contentBottom + mOverscrollDistance))) { 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFlingRunnable == null) { 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingRunnable = new FlingRunnable(); 310513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mFlingRunnable.start(-initialVelocity); 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 3110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 31134032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 31144032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 31154032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 3116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPositionScroller.stop(); 3117044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 3118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3121044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mTouchMode = TOUCH_MODE_REST; 3122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 3125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3127637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3128637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 31330a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 31340a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 31350a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (Math.abs(initialVelocity) > mMinimumVelocity) { 3136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 31519d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // Need to redraw since we probably aren't drawing the selector anymore 315279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 31539d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.recycle(); 3161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker = null; 3162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = INVALID_POINTER; 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3166fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (PROFILE_SCROLLING) { 3167fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mScrollProfilingStarted) { 3168fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown Debug.stopMethodTracing(); 3169fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mScrollProfilingStarted = false; 3170fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3171fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollStrictSpan != null) { 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollStrictSpan.finish(); 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollStrictSpan = null; 31762585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 31772585e9bd6ded294e426607717ccc85a56bade594Justin Koh break; 31782585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 31792585e9bd6ded294e426607717ccc85a56bade594Justin Koh 31802585e9bd6ded294e426607717ccc85a56bade594Justin Koh case MotionEvent.ACTION_CANCEL: { 31814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (mTouchMode) { 31826f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell case TOUCH_MODE_OVERSCROLL: 31836f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell if (mFlingRunnable == null) { 31846f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell mFlingRunnable = new FlingRunnable(); 31856f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 31866f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell mFlingRunnable.startSpringback(); 31876f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell break; 31886f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_OVERFLING: 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do nothing - let it play out. 31919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown setPressed(false); 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 3198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3212498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3213498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (mEdgeGlowTop != null) { 3214498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell mEdgeGlowTop.onRelease(); 3215498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell mEdgeGlowBottom.onRelease(); 3216498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell } 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActivePointerId = INVALID_POINTER; 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_POINTER_UP: { 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project onSecondaryPointerUp(ev); 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int x = mMotionX; 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int y = mMotionY; 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = pointToPosition(x, y); 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionPosition >= 0) { 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = y; 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3238005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } 3239005c0a445e32dfbf18bf93d209da857604925a58Adam Powell 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onOverScrolled(int scrollX, int scrollY, 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean clampedX, boolean clampedY) { 3243079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mScrollY = scrollY; 32449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clampedY) { 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Velocity is broken by hitting the limit; don't start a fling off of this. 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 32486198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mVelocityTracker.clear(); 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3251d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn awakenScrollBars(); 3252d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3253d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 3254d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 3255d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn public void draw(Canvas canvas) { 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3257079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mEdgeGlowTop != null) { 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mEdgeGlowTop.isFinished()) { 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int restoreCount = canvas.save(); 3261d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy final int width = getWidth(); 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.translate(0, Math.min(0, scrollY + mFirstPositionDistanceGuess)); 3264d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mEdgeGlowTop.setSize(width, getHeight()); 3265d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mEdgeGlowTop.draw(canvas)) { 3266d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn invalidate(); 3267005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } 3268005c0a445e32dfbf18bf93d209da857604925a58Adam Powell canvas.restoreToCount(restoreCount); 3269079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mEdgeGlowBottom.isFinished()) { 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int restoreCount = canvas.save(); 3272005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int width = getWidth(); 3273d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy final int height = getHeight(); 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.translate(-width, Math.max(height, scrollY + mLastPositionDistanceGuess)); 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.rotate(180, width, 0); 3277079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mEdgeGlowBottom.setSize(width, height); 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEdgeGlowBottom.draw(canvas)) { 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 32806198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 32816198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy canvas.restoreToCount(restoreCount); 3282637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3283637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3284637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFastScroller != null) { 3285637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3286637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 32876198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // Pin to the top/bottom during overscroll 3288637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 32896198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy canvas.translate(0, (float) scrollY); 32906198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFastScroller.draw(canvas); 32916198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy canvas.restoreToCount(restoreCount); 32926198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 32936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFastScroller.draw(canvas); 3294637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 329521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 329621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 3297637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3298637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 3299637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public boolean onInterceptTouchEvent(MotionEvent ev) { 3300637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int action = ev.getAction(); 3301637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View v; 3302637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3303637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFastScroller != null) { 3304637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 3305637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (intercepted) { 33066198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy return true; 33076198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 33086198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 33096198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy 33104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira switch (action & MotionEvent.ACTION_MASK) { 33116198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy case MotionEvent.ACTION_DOWN: { 3312f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy int touchMode = mTouchMode; 3313f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3314f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mMotionCorrection = 0; 3315d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return true; 3316d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3317d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 33184032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int x = (int) ev.getX(); 33194032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int y = (int) ev.getY(); 33204032252c997be9f5d013054dc23ace855007b3a5Adam Powell mActivePointerId = ev.getPointerId(0); 33216198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 33239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 33259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 332779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = v.getTop(); 3328637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3329637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3330637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3331637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3332637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3333637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3334637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 3336637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3337637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3338637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3339637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3340637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3341637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case MotionEvent.ACTION_MOVE: { 3342637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3343637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_DOWN: 3344637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int y = (int) ev.getY(pointerIndex); 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 3349637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3350637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3351637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3352637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3353637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 33560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mActivePointerId = INVALID_POINTER; 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_POINTER_UP: { 336213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka onSecondaryPointerUp(ev); 33634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira break; 33644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void onSecondaryPointerUp(MotionEvent ev) { 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 33721cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick MotionEvent.ACTION_POINTER_INDEX_SHIFT; 33731cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick final int pointerId = ev.getPointerId(pointerIndex); 33741cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (pointerId == mActivePointerId) { 33751cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick // This was our active pointer going up. Choose a new 33761cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick // active pointer and adjust accordingly. 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Make this decision more intelligent. 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = (int) ev.getX(newPointerIndex); 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = (int) ev.getY(newPointerIndex); 3381637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3382637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 3383637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3384637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 3385637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 3390637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * {@inheritDoc} 3391637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 3393637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void addTouchables(ArrayList<View> views) { 3394637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int count = getChildCount(); 3395637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstPosition = mFirstPosition; 3396637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final ListAdapter adapter = mAdapter; 3397637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (adapter == null) { 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3400637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3402637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell for (int i = 0; i < count; i++) { 3403637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View child = getChildAt(i); 3404637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (adapter.isEnabled(firstPosition + i)) { 3405637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell views.add(child); 3406637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 340713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka child.addTouchables(views); 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } 3410637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3411637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 3412637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Fires an "on scroll state changed" event to the registered 3413637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 34144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * is fired only if the specified state is different from the previously known state. 34154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * 34164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @param newState The new scroll state. 34174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira */ 34184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell void reportScrollStateChange(int newState) { 34194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (newState != mLastScrollState) { 34204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mOnScrollListener != null) { 34214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastScrollState = newState; 34224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 34234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 34274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 34284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Responsible for fling behavior. Use {@link #start(int)} to 34294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * initiate a fling. Each frame of the fling is handled in {@link #run()}. 34304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * A FlingRunnable will keep re-posting itself until the fling is done. 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34329bc30d31322848d61f518c1db43544988faaba8fAdam Powell */ 34339bc30d31322848d61f518c1db43544988faaba8fAdam Powell private class FlingRunnable implements Runnable { 34349bc30d31322848d61f518c1db43544988faaba8fAdam Powell /** 34359bc30d31322848d61f518c1db43544988faaba8fAdam Powell * Tracks the decay of a fling scroll 34369bc30d31322848d61f518c1db43544988faaba8fAdam Powell */ 34379bc30d31322848d61f518c1db43544988faaba8fAdam Powell private final OverScroller mScroller; 34389bc30d31322848d61f518c1db43544988faaba8fAdam Powell 34399bc30d31322848d61f518c1db43544988faaba8fAdam Powell /** 34409bc30d31322848d61f518c1db43544988faaba8fAdam Powell * Y value reported by mScroller on the previous fling 34419bc30d31322848d61f518c1db43544988faaba8fAdam Powell */ 34429bc30d31322848d61f518c1db43544988faaba8fAdam Powell private int mLastFlingY; 34439bc30d31322848d61f518c1db43544988faaba8fAdam Powell 34449bc30d31322848d61f518c1db43544988faaba8fAdam Powell private final Runnable mCheckFlywheel = new Runnable() { 34459bc30d31322848d61f518c1db43544988faaba8fAdam Powell public void run() { 34469bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int activeId = mActivePointerId; 34479bc30d31322848d61f518c1db43544988faaba8fAdam Powell final VelocityTracker vt = mVelocityTracker; 34489bc30d31322848d61f518c1db43544988faaba8fAdam Powell final OverScroller scroller = mScroller; 34499bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (vt == null || activeId == INVALID_POINTER) { 34509bc30d31322848d61f518c1db43544988faaba8fAdam Powell return; 34519bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 34529bc30d31322848d61f518c1db43544988faaba8fAdam Powell 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project vt.computeCurrentVelocity(1000, mMaximumVelocity); 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float yvel = -vt.getYVelocity(activeId); 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scroller.isScrollingInDirection(0, yvel)) { 34570a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy // Keep the fling alive a little longer 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(this, FLYWHEEL_TIMEOUT); 34590a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne } else { 34600a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne endFling(); 34610a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 34620a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 34630a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne } 34640a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne } 34650a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne }; 3466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell FlingRunnable() { 347033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown mScroller = new OverScroller(getContext()); 347133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 347233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 347333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown void start(int initialVelocity) { 347433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 347533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown mLastFlingY = initialY; 347633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown mScroller.fling(0, initialY, 0, initialVelocity, 347733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 3478275d8238da4c19acefffdb701273de86c09d2472Jeff Brown mTouchMode = TOUCH_MODE_FLING; 347933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown post(this); 348033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 348133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (PROFILE_FLINGING) { 348233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (!mFlingProfilingStarted) { 348333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown Debug.startMethodTracing("AbsListViewFling"); 348433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown mFlingProfilingStarted = true; 348533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 348633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 348733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 348833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mFlingStrictSpan == null) { 348933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3492637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3493637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3494637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3495637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 349607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell invalidate(); 349707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell post(this); 349807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } else { 3499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 35009d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 35019d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 3502a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira 3503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 35049d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final int min = mScrollY > 0 ? Integer.MIN_VALUE : 0; 3505a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy final int max = mScrollY > 0 ? 0 : Integer.MAX_VALUE; 3506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, min, max, 0, getHeight()); 3507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3508637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3509637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3510637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 351107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 351207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell void edgeReached(int delta) { 351307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3514637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3515637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 35169d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 35179d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mTouchMode = TOUCH_MODE_OVERFLING; 35189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final int vel = (int) mScroller.getCurrVelocity(); 3519e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira if (delta > 0) { 3520a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.onAbsorb(vel); 3521637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 35229d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowBottom.onAbsorb(vel); 3523a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy } 3524a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy } else { 3525637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3526637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPositionScroller != null) { 3527637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPositionScroller.stop(); 3528637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3530637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3531637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3532637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3533637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3534637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startScroll(int distance, int duration) { 3535637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3536637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = initialY; 3537637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3538637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_FLING; 3539637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void endFling() { 354307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mTouchMode = TOUCH_MODE_REST; 354407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 354507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell removeCallbacks(this); 354607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell removeCallbacks(mCheckFlywheel); 354707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 354807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 354907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell clearScrollingCache(); 355007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mScroller.abortAnimation(); 355113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 355213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mFlingStrictSpan != null) { 355313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mFlingStrictSpan.finish(); 355413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mFlingStrictSpan = null; 355513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 355613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 355713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 355813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka void flywheelTouch() { 355913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 356013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 356113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 356213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void run() { 356313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka switch (mTouchMode) { 356413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka default: 356513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka endFling(); 356613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka return; 356713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 356813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case TOUCH_MODE_SCROLL: 356913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mScroller.isFinished()) { 357013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka return; 357113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 357213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka // Fall through 357313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case TOUCH_MODE_FLING: { 357413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mItemCount == 0 || getChildCount() == 0) { 357513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka endFling(); 357613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka return; 357713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 357813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 357913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final OverScroller scroller = mScroller; 35809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean more = scroller.computeScrollOffset(); 35819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int y = scroller.getCurrY(); 35829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Flip sign to convert finger direction to list items direction 35840a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy // (e.g. finger moving down means list is moving towards the top) 35851fa179ef41c06bd19da70fd9bf95741238791940Adam Powell int delta = mLastFlingY - y; 35861fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 35871fa179ef41c06bd19da70fd9bf95741238791940Adam Powell // Pretend that each frame of a fling scroll is a touch scroll 35881fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (delta > 0) { 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // List is moving towards the top. Use first view as mMotionPosition 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = mFirstPosition; 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View firstView = getChildAt(0); 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = firstView.getTop(); 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't fling more than 1 screen 35950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 35964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } else { 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // List is moving towards the bottom. Use last view as mMotionPosition 359879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int offsetToLast = getChildCount() - 1; 3599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 3600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 36034e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Don't fling more than 1 screen 36054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 36064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 360979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int oldTop = 0; 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project oldTop = motionView.getTop(); 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't stop just because delta is zero (it could have been rounded) 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (atEnd) { 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Tweak the scroll for how far we overshot 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int overshoot = -(delta - (motionView.getTop() - oldTop)); 362113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 362213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 0, mOverflingDistance, false); 362379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 36244b4f40f84e72579417604143e5f42115769649b8Romain Guy if (more) { 36254b4f40f84e72579417604143e5f42115769649b8Romain Guy edgeReached(delta); 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (more && !atEnd) { 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 36322585e9bd6ded294e426607717ccc85a56bade594Justin Koh mLastFlingY = y; 36332585e9bd6ded294e426607717ccc85a56bade594Justin Koh post(this); 36342585e9bd6ded294e426607717ccc85a56bade594Justin Koh } else { 36352585e9bd6ded294e426607717ccc85a56bade594Justin Koh endFling(); 36362585e9bd6ded294e426607717ccc85a56bade594Justin Koh 36374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (PROFILE_FLINGING) { 363813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mFlingProfilingStarted) { 363913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka Debug.stopMethodTracing(); 364078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mFlingProfilingStarted = false; 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFlingStrictSpan != null) { 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingStrictSpan.finish(); 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingStrictSpan = null; 36469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 364813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 365213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case TOUCH_MODE_OVERFLING: { 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final OverScroller scroller = mScroller; 36549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scroller.computeScrollOffset()) { 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 36564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira final int deltaY = scroller.getCurrY() - scrollY; 36574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 36584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 0, mOverflingDistance, false)) { 36594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell startSpringback(); 36604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } else { 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 36629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira endFling(); 36664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 36684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 36734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 36744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell class PositionScroller implements Runnable { 36754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int SCROLL_DURATION = 400; 36764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 3677637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private static final int MOVE_DOWN_POS = 1; 36784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int MOVE_UP_POS = 2; 36794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int MOVE_DOWN_BOUND = 3; 36804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int MOVE_UP_BOUND = 4; 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int MOVE_OFFSET = 5; 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mMode; 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTargetPos; 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mBoundPos; 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastSeenPos; 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mScrollDuration; 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final int mExtraScroll; 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOffsetFromTop; 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PositionScroller() { 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void start(int position) { 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project stop(); 36989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPos = mFirstPosition; 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastPos = firstPos + getChildCount() - 1; 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTravelCount; 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position <= firstPos) { 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTravelCount = firstPos - position + 1; 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMode = MOVE_UP_POS; 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (position >= lastPos) { 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTravelCount = position - lastPos + 1; 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMode = MOVE_DOWN_POS; 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Already on screen, nothing to do 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTravelCount > 0) { 37150046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDuration = SCROLL_DURATION; 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTargetPos = position; 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBoundPos = INVALID_POSITION; 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastSeenPos = INVALID_POSITION; 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void start(int position, int boundPosition) { 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project stop(); 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (boundPosition == INVALID_POSITION) { 3730637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell start(position); 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPos = mFirstPosition; 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastPos = firstPos + getChildCount() - 1; 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3737d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne int viewTravelCount; 3738d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (position <= firstPos) { 3739d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int boundPosFromLast = lastPos - boundPosition; 3740d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (boundPosFromLast < 1) { 3741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Moving would shift our bound position off the screen. Abort. 3742d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3743d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3744d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3745d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int posTravel = firstPos - position + 1; 3746d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int boundTravel = boundPosFromLast - 1; 3747d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (boundTravel < posTravel) { 3748d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne viewTravelCount = boundTravel; 3749b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown mMode = MOVE_UP_BOUND; 3750b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown } else { 3751d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne viewTravelCount = posTravel; 3752d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mMode = MOVE_UP_POS; 3753d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3754d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else if (position >= lastPos) { 3755d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int boundPosFromFirst = boundPosition - firstPos; 3756b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik if (boundPosFromFirst < 1) { 3757d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Moving would shift our bound position off the screen. Abort. 3758d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3759d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3760d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3761d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int posTravel = position - lastPos + 1; 3762d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int boundTravel = boundPosFromFirst - 1; 376379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (boundTravel < posTravel) { 3764637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell viewTravelCount = boundTravel; 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMode = MOVE_DOWN_BOUND; 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 376779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell viewTravelCount = posTravel; 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMode = MOVE_DOWN_POS; 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37700b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } else { 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Already on screen, nothing to do 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37741fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTravelCount > 0) { 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDuration = SCROLL_DURATION / viewTravelCount; 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDuration = SCROLL_DURATION; 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTargetPos = position; 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBoundPos = boundPosition; 37821cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mLastSeenPos = INVALID_POSITION; 37831cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 37841cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick post(this); 37851cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startWithOffset(int position, int offset) { 3788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell startWithOffset(position, offset, SCROLL_DURATION); 3789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3791637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startWithOffset(int position, int offset, int duration) { 37921fa179ef41c06bd19da70fd9bf95741238791940Adam Powell stop(); 3793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3794637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTargetPos = position; 3795e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne mOffsetFromTop = offset; 3796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mBoundPos = INVALID_POSITION; 3797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastSeenPos = INVALID_POSITION; 3798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMode = MOVE_OFFSET; 3799637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 38000b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int firstPos = mFirstPosition; 3801044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int childCount = getChildCount(); 3802044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int lastPos = firstPos + childCount - 1; 3803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int viewTravelCount; 38051fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (position < firstPos) { 3806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell viewTravelCount = firstPos - position; 3807637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (position > lastPos) { 3808637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell viewTravelCount = position - lastPos; 3809637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // On-screen, just scroll. 3811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell smoothScrollBy(targetTop - offset, duration); 3813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Estimate how many screens we should travel 3817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 3818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (int) (duration / screenTravelCount); 38204032252c997be9f5d013054dc23ace855007b3a5Adam Powell mLastSeenPos = INVALID_POSITION; 38214032252c997be9f5d013054dc23ace855007b3a5Adam Powell 38224032252c997be9f5d013054dc23ace855007b3a5Adam Powell post(this); 38234032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 38244032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void stop() { 3826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell removeCallbacks(this); 38271fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 3828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void run() { 38300b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38330b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 3834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3835458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 38361fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 3837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3839d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int lastViewIndex = getChildCount() - 1; 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastPos = firstPos + lastViewIndex; 3841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 384279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (lastViewIndex < 0) { 3843d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 384421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 384521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 384621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy if (lastPos == mLastSeenPos) { 3847d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // No new views, let things keep going. 38485e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick post(this); 38495e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick return; 38505e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 38515e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 38525e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick final View lastView = getChildAt(lastViewIndex); 3853d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int lastViewHeight = lastView.getHeight(); 3854d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int lastViewTop = lastView.getTop(); 3855d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int lastViewPixelsShowing = listHeight - lastViewTop; 3856d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDuration); 386079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 386179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastSeenPos = lastPos; 3862d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (lastPos < mTargetPos) { 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 38644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } 3865d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne break; 3866d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3867d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3868d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case MOVE_DOWN_BOUND: { 3869d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int nextViewIndex = 1; 3870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 38717f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 38727f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (firstPos == mBoundPos || childCount <= nextViewIndex 38737f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey || firstPos + childCount >= mItemCount) { 38747f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey return; 387579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 387679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int nextPos = firstPos + nextViewIndex; 387779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 387879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (nextPos == mLastSeenPos) { 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // No new views, let things keep going. 3880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View nextView = getChildAt(nextViewIndex); 3885637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int nextViewHeight = nextView.getHeight(); 3886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int nextViewTop = nextView.getTop(); 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extraScroll = mExtraScroll; 3888637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (nextPos < mBoundPos) { 3889637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3890637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollDuration); 3891637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3892637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastSeenPos = nextPos; 3893637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 3895637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3896637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (nextViewTop > extraScroll) { 3897637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3898637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3899637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3900637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case MOVE_UP_POS: { 3904d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (firstPos == mLastSeenPos) { 3905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // No new views, let things keep going. 3906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3908d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3910637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstView == null) { 3912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3913637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstViewTop = firstView.getTop(); 3915637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 39179d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 39189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 3919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastSeenPos = firstPos; 3920637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPos > mTargetPos) { 3922637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3923637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3924637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39263cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell 39273cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell case MOVE_UP_BOUND: { 39283cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell final int lastViewIndex = getChildCount() - 2; 3929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (lastViewIndex < 0) { 3930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastPos = firstPos + lastViewIndex; 39339d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 3934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (lastPos == mLastSeenPos) { 39351fa179ef41c06bd19da70fd9bf95741238791940Adam Powell // No new views, let things keep going. 3936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return; 3938637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3939637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3940637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(lastViewIndex); 3941637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastViewHeight = lastView.getHeight(); 3942637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastViewTop = lastView.getTop(); 3943637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3944d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mLastSeenPos = lastPos; 3945637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (lastPos > mBoundPos) { 3946637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 3947637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3948637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = listHeight - mExtraScroll; 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastViewBottom = lastViewTop + lastViewHeight; 3951637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (bottom > lastViewBottom) { 3952637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 3953637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3954637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3958044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell case MOVE_OFFSET: { 3959044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (mLastSeenPos == firstPos) { 3960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // No new views, let things keep going. 3961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3962044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell return; 3963044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 3964044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3965044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mLastSeenPos = firstPos; 3966044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3967044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int childCount = getChildCount(); 3968044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int position = mTargetPos; 3969044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int lastPos = firstPos + childCount - 1; 3970044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3971044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int viewTravelCount = 0; 3972044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (position < firstPos) { 3973044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell viewTravelCount = firstPos - position + 1; 3974637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (position > lastPos) { 3975637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell viewTravelCount = position - lastPos; 39761fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 3977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3978637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Estimate how many screens we should travel 3979637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 3980637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3981637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 3982637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (position < firstPos) { 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project smoothScrollBy((int) (-getHeight() * modifier), mScrollDuration); 39849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (position > lastPos) { 39864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira smoothScrollBy((int) (getHeight() * modifier), mScrollDuration); 3987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3988e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else { 39894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira // On-screen, just scroll. 3990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int distance = targetTop - mOffsetFromTop; 3992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(distance, 3993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 3994e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 39954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira break; 3996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 3999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 400152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne } 4002e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4003e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 40044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira /** 4005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * The amount of friction applied to flings. The default value 4006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * is {@link ViewConfiguration#getScrollFriction}. 4007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * 40084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * @return A scalar dimensionless value representing the coefficient of 4009e69370e16852c576890dd70733ad40669fd9367eAdam Powell * friction. 40104032252c997be9f5d013054dc23ace855007b3a5Adam Powell */ 40114032252c997be9f5d013054dc23ace855007b3a5Adam Powell public void setFriction(float friction) { 4012aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mFlingRunnable == null) { 4013aadf4fb68e640c0622a1070206f69a7724328632Adam Powell mFlingRunnable = new FlingRunnable(); 4014aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4015aadf4fb68e640c0622a1070206f69a7724328632Adam Powell mFlingRunnable.mScroller.setFriction(friction); 4016aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4017aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4018aadf4fb68e640c0622a1070206f69a7724328632Adam Powell /** 4019aadf4fb68e640c0622a1070206f69a7724328632Adam Powell * Sets a scale factor for the fling velocity. The initial scale 4020aadf4fb68e640c0622a1070206f69a7724328632Adam Powell * factor is 1.0. 4021aadf4fb68e640c0622a1070206f69a7724328632Adam Powell * 4022e69370e16852c576890dd70733ad40669fd9367eAdam Powell * @param scale The scale factor to multiply the velocity by. 4023e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4024e69370e16852c576890dd70733ad40669fd9367eAdam Powell public void setVelocityScale(float scale) { 4025e69370e16852c576890dd70733ad40669fd9367eAdam Powell mVelocityScale = scale; 4026e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4027e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4029e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Smoothly scroll to the specified adapter position. The view will 40304e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * scroll such that the indicated position is displayed. 40314bede9e425875542976a422222510fa4056a8339Romain Guy * @param position Scroll to this adapter position. 4032e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4035e69370e16852c576890dd70733ad40669fd9367eAdam Powell mPositionScroller = new PositionScroller(); 4036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4039e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4040458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4041458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 40424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * such that the indicated position is displayed <code>offset</code> pixels from 4043458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * 4047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Position to scroll to 4048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * of the view when scrolling is finished 4050458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Number of milliseconds to use for the scroll 40514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira */ 40521fa179ef41c06bd19da70fd9bf95741238791940Adam Powell public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 40544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mPositionScroller = new PositionScroller(); 4055e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 40564032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.startWithOffset(position, offset, duration); 40574032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 40624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4063aadf4fb68e640c0622a1070206f69a7724328632Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4064aadf4fb68e640c0622a1070206f69a7724328632Adam Powell * as possible. 4065aadf4fb68e640c0622a1070206f69a7724328632Adam Powell * 4066aadf4fb68e640c0622a1070206f69a7724328632Adam Powell * @param position Position to scroll to 4067aadf4fb68e640c0622a1070206f69a7724328632Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4068aadf4fb68e640c0622a1070206f69a7724328632Adam Powell * of the view when scrolling is finished 4069aadf4fb68e640c0622a1070206f69a7724328632Adam Powell */ 4070aadf4fb68e640c0622a1070206f69a7724328632Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4071aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mPositionScroller == null) { 4072aadf4fb68e640c0622a1070206f69a7724328632Adam Powell mPositionScroller = new PositionScroller(); 4073e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4074e69370e16852c576890dd70733ad40669fd9367eAdam Powell mPositionScroller.startWithOffset(position, offset); 4075e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4076e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4077e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4078e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Smoothly scroll to the specified adapter position. The view will 4079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4080e69370e16852c576890dd70733ad40669fd9367eAdam Powell * stop early if scrolling further would scroll boundPosition out of 40814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 40824bede9e425875542976a422222510fa4056a8339Romain Guy * @param position Scroll to this adapter position. 4083e69370e16852c576890dd70733ad40669fd9367eAdam Powell * @param boundPosition Do not scroll if it would move this adapter 4084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4085458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 40894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } 4090458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4091458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4092458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4097458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 4099e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (mFlingRunnable == null) { 4100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4103458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No sense starting to scroll if we're not going anywhere 4104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int childCount = getChildCount(); 4106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + childCount; 4107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int topLimit = getPaddingTop(); 4108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 4109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 4111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell (lastPos == mItemCount - 1 && 4113458034799861fef47e00d85d528b4dac5e00bd51Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 4114458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.endFling(); 4115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 4116e69370e16852c576890dd70733ad40669fd9367eAdam Powell mPositionScroller.stop(); 4117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 41194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.startScroll(distance, duration); 4121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4124458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Allows RemoteViews to scroll relatively to a position. 4126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void smoothScrollByOffset(int position) { 41284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira int index = -1; 41291fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (position < 0) { 4130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell index = getFirstVisiblePosition(); 4131e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > 0) { 4132e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell index = getLastVisiblePosition(); 4133322171b333a1c796fcc1428a96ea1d854a3881faErik } 4134322171b333a1c796fcc1428a96ea1d854a3881faErik 4135322171b333a1c796fcc1428a96ea1d854a3881faErik if (index > -1) { 4136aadf4fb68e640c0622a1070206f69a7724328632Adam Powell View child = getChildAt(index - getFirstVisiblePosition()); 41374032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (child != null) { 41384032252c997be9f5d013054dc23ace855007b3a5Adam Powell Rect visibleRect = new Rect(); 4139aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (child.getGlobalVisibleRect(visibleRect)) { 4140aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // the child is partially visible 4141aadf4fb68e640c0622a1070206f69a7724328632Adam Powell int childRectArea = child.getWidth() * child.getHeight(); 4142aadf4fb68e640c0622a1070206f69a7724328632Adam Powell int visibleRectArea = visibleRect.width() * visibleRect.height(); 4143aadf4fb68e640c0622a1070206f69a7724328632Adam Powell float visibleArea = (visibleRectArea / (float) childRectArea); 4144aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final float visibleThreshold = 0.75f; 4145aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if ((position < 0) && (visibleArea < visibleThreshold)) { 4146aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // the top index is not perceivably visible so offset 4147aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // to account for showing that top index as well 4148aadf4fb68e640c0622a1070206f69a7724328632Adam Powell ++index; 4149aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4150aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // the bottom index is not perceivably visible so offset 4151aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // to account for showing that bottom index as well 4152aadf4fb68e640c0622a1070206f69a7724328632Adam Powell --index; 4153aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4154aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4155aadf4fb68e640c0622a1070206f69a7724328632Adam Powell smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 41561fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 41571fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 4158e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4159e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4160e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private void createScrollingCache() { 4161e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mScrollingCacheEnabled && !mCachingStarted) { 4162e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell setChildrenDrawnWithCacheEnabled(true); 4163e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell setChildrenDrawingCacheEnabled(true); 4164e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mCachingStarted = true; 4165371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 4166e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 41674bede9e425875542976a422222510fa4056a8339Romain Guy 4168e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private void clearScrollingCache() { 4169e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mClearScrollingCache == null) { 4170e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mClearScrollingCache = new Runnable() { 4171e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void run() { 4172e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mCachingStarted) { 4173e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mCachingStarted = false; 4174e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell setChildrenDrawnWithCacheEnabled(false); 41750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 4176e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell setChildrenDrawingCacheEnabled(false); 4177e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4178e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (!isAlwaysDrawnWithCacheEnabled()) { 4179371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell invalidate(); 41804ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann } 41810b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 41820b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 4183371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell }; 4184234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 41851fa179ef41c06bd19da70fd9bf95741238791940Adam Powell post(mClearScrollingCache); 4186e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4187e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4188e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4189e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Track a motion scroll 4190e69370e16852c576890dd70733ad40669fd9367eAdam Powell * 4191e69370e16852c576890dd70733ad40669fd9367eAdam Powell * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 4192e69370e16852c576890dd70733ad40669fd9367eAdam Powell * began. Positive numbers mean the user's finger is moving down the screen. 4193e69370e16852c576890dd70733ad40669fd9367eAdam Powell * @param incrementalDeltaY Change in deltaY from the previous event. 4194e69370e16852c576890dd70733ad40669fd9367eAdam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 4195e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4196e69370e16852c576890dd70733ad40669fd9367eAdam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 4197e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4198e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4199e69370e16852c576890dd70733ad40669fd9367eAdam Powell return true; 4200e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4201e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4202e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstTop = getChildAt(0).getTop(); 4203e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastBottom = getChildAt(childCount - 1).getBottom(); 4204e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4205e69370e16852c576890dd70733ad40669fd9367eAdam Powell final Rect listPadding = mListPadding; 4206e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4207e69370e16852c576890dd70733ad40669fd9367eAdam Powell // "effective padding" In this case is the amount of padding that affects 4208e69370e16852c576890dd70733ad40669fd9367eAdam Powell // how much space should not be filled by items. If we don't clip to padding 4209e69370e16852c576890dd70733ad40669fd9367eAdam Powell // there is no effective padding. 4210e69370e16852c576890dd70733ad40669fd9367eAdam Powell int effectivePaddingTop = 0; 4211e69370e16852c576890dd70733ad40669fd9367eAdam Powell int effectivePaddingBottom = 0; 4212e69370e16852c576890dd70733ad40669fd9367eAdam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4213e69370e16852c576890dd70733ad40669fd9367eAdam Powell effectivePaddingTop = listPadding.top; 4214e69370e16852c576890dd70733ad40669fd9367eAdam Powell effectivePaddingBottom = listPadding.bottom; 4215e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4216e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4217e69370e16852c576890dd70733ad40669fd9367eAdam Powell // FIXME account for grid vertical spacing too? 4218e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4219e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int end = getHeight() - effectivePaddingBottom; 4220e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int spaceBelow = lastBottom - end; 4221e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4222e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int height = getHeight() - mPaddingBottom - mPaddingTop; 4223e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (deltaY < 0) { 4224e69370e16852c576890dd70733ad40669fd9367eAdam Powell deltaY = Math.max(-(height - 1), deltaY); 4225e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else { 4226e69370e16852c576890dd70733ad40669fd9367eAdam Powell deltaY = Math.min(height - 1, deltaY); 4227e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4228e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4229e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (incrementalDeltaY < 0) { 4230e69370e16852c576890dd70733ad40669fd9367eAdam Powell incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 4231e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else { 4232e69370e16852c576890dd70733ad40669fd9367eAdam Powell incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 4233e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4234e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4235e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPosition = mFirstPosition; 4236e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4237e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Update our guesses for where the first and last views are 4238e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (firstPosition == 0) { 4239e69370e16852c576890dd70733ad40669fd9367eAdam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4240e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else { 4241e69370e16852c576890dd70733ad40669fd9367eAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4242458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPosition + childCount == mItemCount) { 4244458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4245e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4248458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 42494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (firstPosition == 0 && firstTop >= listPadding.top && incrementalDeltaY >= 0) { 4250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 4251458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 4252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return incrementalDeltaY != 0; 4253458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42550b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstPosition + childCount == mItemCount && 42560b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell lastBottom <= getHeight() - listPadding.bottom && 42570b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell incrementalDeltaY <= 0) { 4258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 4259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 4260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return incrementalDeltaY != 0; 42611fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 4262458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 4264458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean inTouchMode = isInTouchMode(); 4266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (inTouchMode) { 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell hideSelector(); 4268458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42691fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 42701fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4271458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 42721fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 42730b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell int start = 0; 4274458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 4275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 42767e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (down) { 42771fa179ef41c06bd19da70fd9bf95741238791940Adam Powell int top = -incrementalDeltaY; 4278458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell top += listPadding.top; 4280458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira for (int i = 0; i < childCount; i++) { 4282458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4283458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4284029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell break; 42854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } else { 4286029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell count++; 4287029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell int position = firstPosition + i; 4288458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4289458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child, position); 4290458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4291458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4292458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4293458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 42941fa179ef41c06bd19da70fd9bf95741238791940Adam Powell firstPosition + i, -1); 4295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4296458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4297458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4300458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int bottom = getHeight() - incrementalDeltaY; 43011fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 43027e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell bottom -= listPadding.bottom; 4303458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43040b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell for (int i = childCount - 1; i >= 0; i--) { 4305458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4306458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4307458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 43081fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } else { 4309458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 43104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira count++; 43110b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell int position = firstPosition + i; 4312458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4313458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child, position); 4314458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4315458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 43164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira ViewDebug.trace(child, 4317458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 4319458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43201fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 4321458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43250b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 43260b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 43270b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell mBlockLayoutRequests = true; 4328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43291fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (count > 0) { 43301fa179ef41c06bd19da70fd9bf95741238791940Adam Powell detachViewsFromParent(start, count); 4331458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43320b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 4333458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 43367e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell } 43371fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4338458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 4339458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4340458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 43414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 4343458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4344458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4345458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 4346458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 4347458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4348458034799861fef47e00d85d528b4dac5e00bd51Adam Powell positionSelector(mSelectedPosition, getChildAt(childIndex)); 4349458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4350458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (mSelectorPosition != INVALID_POSITION) { 43510b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int childIndex = mSelectorPosition - mFirstPosition; 4352458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4353458034799861fef47e00d85d528b4dac5e00bd51Adam Powell positionSelector(INVALID_POSITION, getChildAt(childIndex)); 4354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4355458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4356458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mSelectorRect.setEmpty(); 4357458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4358458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43591fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mBlockLayoutRequests = false; 4360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43617e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell invokeOnItemScrollListener(); 43620b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell awakenScrollBars(); 43631fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4364458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 43651fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 4366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 43680b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Returns the number of header views in the list. Header views are special views 4369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * at the top of the list that should not be recycled during a layout. 4370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * 4371458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return The number of header views, 0 in the default implementation. 4372458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4373458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int getHeaderViewsCount() { 4374e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return 0; 4375234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4376234a5715309ea74757780aff6123e3144efb5b69Adam Powell 43770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 4378234a5715309ea74757780aff6123e3144efb5b69Adam Powell * Returns the number of footer views in the list. Footer views are special views 4379234a5715309ea74757780aff6123e3144efb5b69Adam Powell * at the bottom of the list that should not be recycled during a layout. 4380e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4381371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell * @return The number of footer views, 0 in the default implementation. 4382234a5715309ea74757780aff6123e3144efb5b69Adam Powell */ 4383234a5715309ea74757780aff6123e3144efb5b69Adam Powell int getFooterViewsCount() { 4384e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return 0; 4385371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 4386e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 43874032252c997be9f5d013054dc23ace855007b3a5Adam Powell /** 4388e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Fills the gap left open by a touch-scroll. During a touch scroll, children that 43894032252c997be9f5d013054dc23ace855007b3a5Adam Powell * remain on screen are shifted and the other ones are discarded. The role of this 43904032252c997be9f5d013054dc23ace855007b3a5Adam Powell * method is to fill the gap thus created by performing a partial layout in the 43914032252c997be9f5d013054dc23ace855007b3a5Adam Powell * empty space. 43924032252c997be9f5d013054dc23ace855007b3a5Adam Powell * 43934032252c997be9f5d013054dc23ace855007b3a5Adam Powell * @param down true if the scroll is going down, false if it is going up 43944032252c997be9f5d013054dc23ace855007b3a5Adam Powell */ 43954032252c997be9f5d013054dc23ace855007b3a5Adam Powell abstract void fillGap(boolean down); 43964032252c997be9f5d013054dc23ace855007b3a5Adam Powell 43974032252c997be9f5d013054dc23ace855007b3a5Adam Powell void hideSelector() { 43984032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mSelectedPosition != INVALID_POSITION) { 43990b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 44000b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mResurrectToPosition = mSelectedPosition; 44010b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 44021fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 4403e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mResurrectToPosition = mNextSelectedPosition; 44040b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 44050b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell setSelectedPositionInt(INVALID_POSITION); 44060b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell setNextSelectedPositionInt(INVALID_POSITION); 44071fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mSelectedTop = 0; 4408e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mSelectorShowing = false; 4409e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4410e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4411234a5715309ea74757780aff6123e3144efb5b69Adam Powell 44120b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 44130b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 44140b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 4415e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of items available in the adapter 4416e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4417e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell int reconcileSelectedPosition() { 4418e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell int position = mSelectedPosition; 4419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position < 0) { 4420458034799861fef47e00d85d528b4dac5e00bd51Adam Powell position = mResurrectToPosition; 4421458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell position = Math.max(0, position); 4423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell position = Math.min(position, mItemCount - 1); 44244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira return position; 4425458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44264bede9e425875542976a422222510fa4056a8339Romain Guy 44274bede9e425875542976a422222510fa4056a8339Romain Guy /** 44284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * Find the row closest to y. This row will be used as the motion row when scrolling 44294bede9e425875542976a422222510fa4056a8339Romain Guy * 44304bede9e425875542976a422222510fa4056a8339Romain Guy * @param y Where the user touched 44314bede9e425875542976a422222510fa4056a8339Romain Guy * @return The position of the first (or only) item in the row containing y 44324bede9e425875542976a422222510fa4056a8339Romain Guy */ 44334bede9e425875542976a422222510fa4056a8339Romain Guy abstract int findMotionRow(int y); 44344bede9e425875542976a422222510fa4056a8339Romain Guy 44354bede9e425875542976a422222510fa4056a8339Romain Guy /** 44364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * Find the row closest to y. This row will be used as the motion row when scrolling. 44374bede9e425875542976a422222510fa4056a8339Romain Guy * 443821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param y Where the user touched 443921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @return The position of the first (or only) item in the row closest to y 444021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 444121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy int findClosestMotionRow(int y) { 44424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira final int childCount = getChildCount(); 444321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy if (childCount == 0) { 444421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy return INVALID_POSITION; 444521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 444621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 444721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int motionRow = findMotionRow(y); 44484e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 44494bede9e425875542976a422222510fa4056a8339Romain Guy } 4450458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4451458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4452458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Causes all the views to be rebuilt and redrawn. 4453458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4454458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void invalidateViews() { 4455458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mDataChanged = true; 4456458034799861fef47e00d85d528b4dac5e00bd51Adam Powell rememberSyncState(); 4457458034799861fef47e00d85d528b4dac5e00bd51Adam Powell requestLayout(); 4458458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 4459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4460322171b333a1c796fcc1428a96ea1d854a3881faErik 4461322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4462322171b333a1c796fcc1428a96ea1d854a3881faErik * If there is a selection returns true. 4463322171b333a1c796fcc1428a96ea1d854a3881faErik * Otherwise resurrects the selection and returns false. 4464322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4465322171b333a1c796fcc1428a96ea1d854a3881faErik boolean ensureSelectionOnMovementKey() { 4466322171b333a1c796fcc1428a96ea1d854a3881faErik if (mSelectedPosition < 0) { 4467322171b333a1c796fcc1428a96ea1d854a3881faErik resurrectSelection(); 4468322171b333a1c796fcc1428a96ea1d854a3881faErik return false; 4469322171b333a1c796fcc1428a96ea1d854a3881faErik } 4470322171b333a1c796fcc1428a96ea1d854a3881faErik return true; 4471322171b333a1c796fcc1428a96ea1d854a3881faErik } 4472322171b333a1c796fcc1428a96ea1d854a3881faErik 4473322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4474322171b333a1c796fcc1428a96ea1d854a3881faErik * Makes the item at the supplied position selected. 4475322171b333a1c796fcc1428a96ea1d854a3881faErik * 4476322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position the position of the new selection 4477322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4478322171b333a1c796fcc1428a96ea1d854a3881faErik abstract void setSelectionInt(int position); 4479322171b333a1c796fcc1428a96ea1d854a3881faErik 4480458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4481e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Attempt to bring the selection back if the user is switching from touch 4482e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * to trackball mode 4483e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @return Whether selection was set to something. 4484e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4485e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell boolean resurrectSelection() { 4486e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int childCount = getChildCount(); 4487e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4488e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (childCount <= 0) { 4489e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return false; 4490e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4491e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4492e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell int selectedTop = 0; 4493e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell int selectedPos; 4494e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell int childrenTop = mListPadding.top; 4495e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell int childrenBottom = mBottom - mTop - mListPadding.bottom; 4496e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPosition = mFirstPosition; 4497e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int toPosition = mResurrectToPosition; 4498e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell boolean down = true; 4499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4500458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 4501458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedPos = toPosition; 45024e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View selected = getChildAt(selectedPos - mFirstPosition); 4504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedTop = selected.getTop(); 4505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int selectedBottom = selected.getBottom(); 4506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // We are scrolled, don't get in the fade 4508458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (selectedTop < childrenTop) { 4509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedTop = childrenTop + getVerticalFadingEdgeLength(); 4510458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (selectedBottom > childrenBottom) { 4511458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedTop = childrenBottom - selected.getMeasuredHeight() 4512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell - getVerticalFadingEdgeLength(); 45134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } 4514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4515458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (toPosition < firstPosition) { 4516458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Default to selecting whatever is first 4517458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedPos = firstPosition; 4518458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4519458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View v = getChildAt(i); 45200b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int top = v.getTop(); 45210b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 45220b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell if (i == 0) { 45230b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell // Remember the position of the first item 4524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectedTop = top; 4525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // See if we are scrolled at all 4526458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPosition > 0 || top < childrenTop) { 45274032252c997be9f5d013054dc23ace855007b3a5Adam Powell // If we are scrolled, don't select anything that is 4528299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // in the fade region 45294032252c997be9f5d013054dc23ace855007b3a5Adam Powell childrenTop += getVerticalFadingEdgeLength(); 45304032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 45314032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 45324032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (top >= childrenTop) { 45334032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Found a view whose top is fully visisble 45344032252c997be9f5d013054dc23ace855007b3a5Adam Powell selectedPos = firstPosition + i; 453579303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell selectedTop = top; 45364032252c997be9f5d013054dc23ace855007b3a5Adam Powell break; 4537aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 45384032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 45394032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 45404032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int itemCount = mItemCount; 45414032252c997be9f5d013054dc23ace855007b3a5Adam Powell down = false; 45424032252c997be9f5d013054dc23ace855007b3a5Adam Powell selectedPos = firstPosition + childCount - 1; 45434032252c997be9f5d013054dc23ace855007b3a5Adam Powell 45440046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell for (int i = childCount - 1; i >= 0; i--) { 45450b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final View v = getChildAt(i); 4546299acb581205b6574bfa91824b1b887e265c4c40Marc Blank final int top = v.getTop(); 4547458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = v.getBottom(); 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4549499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (i == childCount - 1) { 4550499cb9f516062b654952d282f211bee44c31a3c2Winson Chung selectedTop = top; 4551499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 4552499cb9f516062b654952d282f211bee44c31a3c2Winson Chung childrenBottom -= getVerticalFadingEdgeLength(); 4553499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4554499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4555499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4556499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (bottom <= childrenBottom) { 4557499cb9f516062b654952d282f211bee44c31a3c2Winson Chung selectedPos = firstPosition + i; 4558499cb9f516062b654952d282f211bee44c31a3c2Winson Chung selectedTop = top; 4559499cb9f516062b654952d282f211bee44c31a3c2Winson Chung break; 4560499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4561499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4562499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4563499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4564499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4565499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mResurrectToPosition = INVALID_POSITION; 4566499cb9f516062b654952d282f211bee44c31a3c2Winson Chung removeCallbacks(mFlingRunnable); 4567499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mPositionScroller != null) { 4568499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mPositionScroller.stop(); 4569499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4570499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mTouchMode = TOUCH_MODE_REST; 4571499cb9f516062b654952d282f211bee44c31a3c2Winson Chung clearScrollingCache(); 4572499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mSpecificTop = selectedTop; 4573499cb9f516062b654952d282f211bee44c31a3c2Winson Chung selectedPos = lookForSelectablePosition(selectedPos, down); 4574499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 4575499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mLayoutMode = LAYOUT_SPECIFIC; 4576499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setSelectionInt(selectedPos); 4577499cb9f516062b654952d282f211bee44c31a3c2Winson Chung invokeOnItemScrollListener(); 4578499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else { 4579499cb9f516062b654952d282f211bee44c31a3c2Winson Chung selectedPos = INVALID_POSITION; 4580499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4581499cb9f516062b654952d282f211bee44c31a3c2Winson Chung reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4582499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4583499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return selectedPos >= 0; 4584499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 45859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45869d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @Override 45879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 45889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 45890211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy if (count > 0) { 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 45949d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 45959d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Find the row we are supposed to sync to 45969d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mNeedSync) { 45979d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Update this first, since setNextSelectedPositionInt inspects it 45989d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mNeedSync = false; 45999d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 46009d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 46019d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mLayoutMode = LAYOUT_FORCE_BOTTOM; 46029d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy return; 46039d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 46049d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mForceTranscriptScroll) { 46059d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mForceTranscriptScroll = false; 46069d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mLayoutMode = LAYOUT_FORCE_BOTTOM; 46076dfed24158b8fc9150abee23992db621cd82aa43Romain Guy return; 46086dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 46099d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final int childCount = getChildCount(); 46109d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final int listBottom = getBottom() - getPaddingBottom(); 46119d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final View lastChild = getChildAt(childCount - 1); 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + childCount >= mOldItemCount && lastBottom <= listBottom) { 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Something new came in and we didn't scroll; give the user a clue that 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // there's something new. 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project awakenScrollBars(); 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 4623458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case SYNC_SELECTED_POSITION: 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 4626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 46339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4634bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // See if we can find a position in the new data with the same 4635bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // id as the old selection. This will change mSyncPosition. 4636bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell newPos = findSyncPosition(); 4637bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if (newPos >= 0) { 4638bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // Found it. Now verify that new selection is still selectable 4639bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell selectablePos = lookForSelectablePosition(newPos, true); 4640bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if (selectablePos == newPos) { 4641bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // Same row id is selected 4642bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mSyncPosition = newPos; 4643bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 4645bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // If we are at the same height as when we saved state, try 4646bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // to restore the scroll position too. 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 46489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 46529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 46559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 4662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Leave mSyncPosition as it is -- just pin to available range 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 4664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 4665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4666bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell return; 4667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!isInTouchMode()) { 4671bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // We couldn't find matching data -- try to use the same position 4672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell newPos = getSelectedItemPosition(); 4673637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4674637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin position to the available range 4675637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (newPos >= count) { 46760a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne newPos = count - 1; 46770a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne } 46780a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (newPos < 0) { 46790a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne newPos = 0; 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46810a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 4682637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Make sure we select something selectable -- first look down 4683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell selectablePos = lookForSelectablePosition(newPos, true); 46849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4685458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (selectablePos >= 0) { 46869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 4687029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell return; 4688029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } else { 4689029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell // Looking down didn't work -- try looking up 4690029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell selectablePos = lookForSelectablePosition(newPos, false); 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 4692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell setNextSelectedPositionInt(selectablePos); 4693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4695458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4696458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4698458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // We already know where we want to resurrect the selection 46998c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if (mResurrectToPosition >= 0) { 47008c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell return; 47018c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 47028c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4703458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4705458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Nothing is selected. Give up and reset everything. 4707458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 4708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mSelectedPosition = INVALID_POSITION; 4709458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mSelectedRowId = INVALID_ROW_ID; 4710458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mNextSelectedPosition = INVALID_POSITION; 4711079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mNextSelectedRowId = INVALID_ROW_ID; 4712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mNeedSync = false; 4713458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mSelectorPosition = INVALID_POSITION; 4714458034799861fef47e00d85d528b4dac5e00bd51Adam Powell checkSelectionChanged(); 4715458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4716458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDisplayHint(int hint) { 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDisplayHint(hint); 4720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (hint) { 4721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case INVISIBLE: 47228c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if (mPopup != null && mPopup.isShowing()) { 47238c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell dismissPopup(); 47248c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 47258c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell break; 4726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case VISIBLE: 4727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFiltered && mPopup != null && !mPopup.isShowing()) { 4728458034799861fef47e00d85d528b4dac5e00bd51Adam Powell showPopup(); 4729458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4730458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4731458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPopupHidden = hint == INVISIBLE; 4733458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4734458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4735079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 4736458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Removes the filter window 4737458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private void dismissPopup() { 4739458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPopup != null) { 4740458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPopup.dismiss(); 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4745458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Shows the filter window 4746458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4747458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private void showPopup() { 47489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 4749458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (getWindowVisibility() == View.VISIBLE) { 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 4751458034799861fef47e00d85d528b4dac5e00bd51Adam Powell positionPopup(); 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 4753539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell checkFocus(); 4754458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4755539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 47569d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 47579d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy private void positionPopup() { 47589d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int screenHeight = getResources().getDisplayMetrics().heightPixels; 47591fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int[] xy = new int[2]; 47609d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy getLocationOnScreen(xy); 47619d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // TODO: The 20 below should come from the theme 4762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // TODO: And the gravity should be defined in the theme as well 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 4764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (!mPopup.isShowing()) { 4765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 4766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell xy[0], bottomGap); 47674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira } else { 4768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPopup.update(xy[0], bottomGap, -1, -1); 4769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4770458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4772458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4773029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell * What is the distance between the source and destination rectangles given the direction of 47742a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell * focus navigation between them? The direction basically helps figure out more quickly what is 47752a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell * self evident by the relationship between the rects... 4776079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * 4777079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @param source the source rectangle 4778079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @param dest the destination rectangle 4779079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @param direction the direction 4780079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @return the distance between the rectangles 4781079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 47822a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell static int getDistance(Rect source, Rect dest, int direction) { 4783079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int sX, sY; // source x, y 4784079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int dX, dY; // dest x, y 4785029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell switch (direction) { 4786029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell case View.FOCUS_RIGHT: 4787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell sX = source.right; 4788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell sY = source.top + source.height() / 2; 4789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell dX = dest.left; 47904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira dY = dest.top + dest.height() / 2; 4791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_FORWARD: 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_BACKWARD: 48129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right + source.width() / 2; 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 48169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 48249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4826ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell 4827ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell @Override 4828ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell protected boolean isInFilterMode() { 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 48379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 48399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 48419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!acceptFilter()) { 48429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 48439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 48469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 48489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 48574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mFiltered && mPopup != null && mPopup.isShowing()) { 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (event.getAction() == KeyEvent.ACTION_DOWN 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && event.getRepeatCount() == 0) { 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent.DispatcherState state = getKeyDispatcherState(); 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state != null) { 4862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell state.startTracking(event, this); 4863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handled = true; 4865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (event.getAction() == KeyEvent.ACTION_UP 4866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && event.isTracking() && !event.isCanceled()) { 4867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handled = true; 4868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTextFilter.setText(""); 4869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell okToSend = false; 4872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case KeyEvent.KEYCODE_SPACE: 4874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Only send spaces once we are filtered 4875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell okToSend = mFiltered; 4876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4877637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (okToSend) { 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48864e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 48874e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown int action = event.getAction(); 48888d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown switch (action) { 48898d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown case KeyEvent.ACTION_DOWN: 48904e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 48918d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown break; 4892becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell 4893becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell case KeyEvent.ACTION_UP: 4894becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 48954e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 48968d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown 48974e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case KeyEvent.ACTION_MULTIPLE: 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Return an InputConnection for editing of the filter text. 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isTextFilterEnabled()) { 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // XXX we need to have the text filter created, so we can get an 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // much need to make it as soon as a list view gets focus. 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPublicInputConnection == null) { 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDefInputConnection = new BaseInputConnection(this, false); 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPublicInputConnection = new InputConnectionWrapper( 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.onCreateInputConnection(outAttrs), true) { 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean reportFullscreenMode(boolean enabled) { 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Use our own input connection, since it is 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the "real" one the IME is talking with. 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mDefInputConnection.reportFullscreenMode(enabled); 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean performEditorAction(int editorAction) { 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The editor is off in its own window; we need to be 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the one that does this. 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (editorAction == EditorInfo.IME_ACTION_DONE) { 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project InputMethodManager imm = (InputMethodManager) 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getContext().getSystemService( 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context.INPUT_METHOD_SERVICE); 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (imm != null) { 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project imm.hideSoftInputFromWindow(getWindowToken(), 0); 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sendKeyEvent(KeyEvent event) { 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Use our own input connection, since the filter 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // text view may not be shown in a window so has 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // no ViewRoot to dispatch events with. 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mDefInputConnection.sendKeyEvent(event); 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mPublicInputConnection; 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * and this allows the proxying to happen. 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return view == mTextFilter; 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // For some reason setting this as the "real" input type changes 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the text view in some way that it doesn't work, and I don't 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // want to figure out why this is. 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 49869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 49934032252c997be9f5d013054dc23ace855007b3a5Adam Powell p.setHeight(LayoutParams.WRAP_CONTENT); 49944032252c997be9f5d013054dc23ace855007b3a5Adam Powell p.setBackgroundDrawable(null); 49954032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPopup = p; 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGlobalLayoutListenerAddedFilter = true; 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50023c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 501314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mPopup != null && mPopup.isShowing()) { 501414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell dismissPopup(); 501514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 501614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 501714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 501814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 501914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 502014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Returns if the ListView currently has a text filter. 502114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 502214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell public boolean hasTextFilter() { 502314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell return mFiltered; 502414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 502514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 502614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell public void onGlobalLayout() { 502714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (isShown()) { 502814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Show the popup if we are filtered 502914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 503014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell showPopup(); 503114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 503214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 503314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Hide the popup when we are no longer visible 503414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mPopup != null && mPopup.isShowing()) { 503514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell dismissPopup(); 503614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 503714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 503814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 503914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 504014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 504114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 504214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * For our text watcher that is associated with the text filter. Does 504314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * nothing. 504414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 504514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell public void beforeTextChanged(CharSequence s, int start, int count, int after) { 504614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 504714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 504814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 504914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * For our text watcher that is associated with the text filter. Performs 505014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * the actual filtering as the text changes, and takes care of hiding and 505114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * showing the popup displaying the currently entered filter text. 505214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 505314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell public void onTextChanged(CharSequence s, int start, int before, int count) { 505414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mPopup != null && isTextFilterEnabled()) { 505514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int length = s.length(); 505614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean showing = mPopup.isShowing(); 505714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!showing && length > 0) { 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 5061ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell } else if (showing && length == 0) { 5062ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell // Remove the filter popup if the user has cleared all text 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 506414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mFiltered = false; 506514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 506614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mAdapter instanceof Filterable) { 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 5068539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // Filter should not be null when we reach this part 5069539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (f != null) { 5070539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell f.filter(s, this); 507114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 507214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell throw new IllegalStateException("You cannot call onTextChanged with a non " 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50800785279dad89d90564f42beb2c4620bf387a966eAdam Powell * For our text watcher that is associated with the text filter. Does 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * nothing. 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5083da13dbae6fe0619101433ac861da460b8be63a36Adam Powell public void afterTextChanged(Editable s) { 5084da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 5085da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 5086da13dbae6fe0619101433ac861da460b8be63a36Adam Powell public void onFilterComplete(int count) { 5087da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mSelectedPosition < 0 && count > 0) { 5088da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mResurrectToPosition = INVALID_POSITION; 50890785279dad89d90564f42beb2c4620bf387a966eAdam Powell resurrectSelection(); 5090ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell } 50910785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 50920785279dad89d90564f42beb2c4620bf387a966eAdam Powell 5093ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell @Override 5094ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 50950785279dad89d90564f42beb2c4620bf387a966eAdam Powell return new LayoutParams(p); 50960785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 50970785279dad89d90564f42beb2c4620bf387a966eAdam Powell 50980785279dad89d90564f42beb2c4620bf387a966eAdam Powell @Override 50990785279dad89d90564f42beb2c4620bf387a966eAdam Powell public LayoutParams generateLayoutParams(AttributeSet attrs) { 51000785279dad89d90564f42beb2c4620bf387a966eAdam Powell return new AbsListView.LayoutParams(getContext(), attrs); 51010785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background. 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Zero means that what's behind this object is translucent (non solid) or is not made of a 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * single color. This hint will not affect any existing background drawable set on this view ( 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * typically set via {@link #setBackgroundDrawable(Drawable)}). 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (color != mCacheColorHint) { 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCacheColorHint = color; 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(i).setDrawingCacheBackgroundColor(color); 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.setCacheColorHint(color); 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 5194079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 519843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy */ 519943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 520043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected boolean onConsistencyCheck(int consistency) { 520143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy boolean result = super.onConsistencyCheck(consistency); 520243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 520343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 520443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 520543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (checkLayout) { 520643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy // The active recycler must be empty 520743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy final View[] activeViews = mRecycler.mActiveViews; 520843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy int count = activeViews.length; 520943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy for (int i = 0; i < count; i++) { 521043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (activeViews[i] != null) { 521143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy result = false; 521243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 521324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 521443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy activeViews[i]); 521543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // All views in the recycler must NOT be on screen and must NOT have a parent 5219d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!checkScrap(scrap)) result = false; 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scraps = mRecycler.mScrapViews; 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project count = scraps.length; 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!checkScrap(scraps[i])) result = false; 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return result; 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52314df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project private boolean checkScrap(ArrayList<View> scrap) { 5232b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (scrap == null) return true; 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean result = true; 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = scrap.size(); 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = scrap.get(i); 5238b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (view.getParent() != null) { 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result = false; 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project " has a view in its scrap heap still attached to a parent: " + view); 524224443ea3992e372e47daa50266b0f2ec38cac388Romain Guy } 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (indexOfChild(view) >= 0) { 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project result = false; 5245b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project " has a view in its scrap heap that is also a direct child: " + view); 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return result; 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void finishGlows() { 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mEdgeGlowTop != null) { 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEdgeGlowTop.finish(); 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mEdgeGlowBottom.finish(); 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * through the specified intent. 52639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRemoteViewsAdapter(Intent intent) { 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // service handling the specified intent. 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRemoteAdapter != null) { 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Intent.FilterComparison fcOld = new Intent.FilterComparison( 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRemoteAdapter.getRemoteViewsServiceIntent()); 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (fcNew.equals(fcOld)) { 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Otherwise, create a new RemoteViewsAdapter for binding 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Called back when the adapter connects to the RemoteViewsService. 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRemoteAdapterConnected() { 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRemoteAdapter != mAdapter) { 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setAdapter(mRemoteAdapter); 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (mRemoteAdapter != null) { 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRemoteAdapter.superNotifyDataSetChanged(); 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52914e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 52924e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 52934e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown * Called back when the adapter disconnects from the RemoteViewsService. 52944e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 52954e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown public void onRemoteAdapterDisconnected() { 52964e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown // If the remote adapter disconnects, we keep it around 52974e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown // since the currently displayed items are still cached. 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Further, we want the service to eventually reconnect 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // when necessary, as triggered by this view requesting 53004e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown // items from the Adapter. 53014e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 53219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5322b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * selects and deselects list items. 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface MultiChoiceModeListener extends ActionMode.Callback { 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Called when an item is checked or unchecked during selection mode. 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode The {@link ActionMode} providing the selection mode 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position Adapter position of the item that was checked or unchecked 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id Adapter ID of the item that was checked or unchecked 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param checked <code>true</code> if the item is now checked, <code>false</code> 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the item is now unchecked. 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onItemCheckedStateChanged(ActionMode mode, 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position, long id, boolean checked); 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 533883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn class MultiChoiceModeWrapper implements MultiChoiceModeListener { 53398d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn private MultiChoiceModeListener mWrapped; 53408d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn 5341b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown public void setWrapped(MultiChoiceModeListener wrapped) { 5342b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown mWrapped = wrapped; 5343b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 5344b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown 534583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn public boolean onCreateActionMode(ActionMode mode, Menu menu) { 534683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mWrapped.onCreateActionMode(mode, menu)) { 534783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn // Initialize checked graphic state? 534883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn setLongClickable(false); 534983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn return true; 535083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mWrapped.onPrepareActionMode(mode, menu); 5356cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy } 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mWrapped.onActionItemClicked(mode, item); 5360b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onDestroyActionMode(ActionMode mode) { 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWrapped.onDestroyActionMode(mode); 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mChoiceActionMode = null; 5365105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Ending selection mode means deselecting everything. 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearChoices(); 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setLongClickable(true); 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onItemCheckedStateChanged(ActionMode mode, 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position, long id, boolean checked) { 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If there are no items selected we no longer need the selection mode. 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getCheckedItemCount() == 0) { 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mode.finish(); 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5387b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5388b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 5389b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5390b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 5391c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project /** 5392c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project * View type for this view, as returned by 5393c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 5394c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project */ 5395c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project @ViewDebug.ExportedProperty(category = "list", mapping = { 53961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 53971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 53981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }) 53991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn int viewType; 54001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 54011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn /** 54021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * When this boolean is set, the view has been added to the AbsListView 54031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * at least once. It is used to know whether headers/footers have already 54041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * been added to the list view and whether they should be treated as 54051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * recycled views or not. 54061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn */ 54071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @ViewDebug.ExportedProperty(category = "list") 54081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn boolean recycledHeaderFooter; 54091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 54101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn /** 54111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * When an AbsListView is measured with an AT_MOST measure spec, it needs 54121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * to obtain children views to measure itself. When doing so, the children 54131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * are not attached to the window, but put in the recycler which assumes 54141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * they've been attached before. Setting this flag will force the reused 54151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * view to be attached to the window rather than just attached to the 54161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * parent. 54171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn */ 54181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @ViewDebug.ExportedProperty(category = "list") 54191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn boolean forceAdd; 54201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 54211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn /** 54221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * The position the view was removed from when pulled out of the 54231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * scrap heap. 54241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * @hide 54251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn */ 54261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn int scrappedFromPosition; 5427c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato 54281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public LayoutParams(Context c, AttributeSet attrs) { 54291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn super(c, attrs); 54301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 54311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 54321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public LayoutParams(int w, int h) { 54331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn super(w, h); 54341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 54351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 5436c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 5437c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project super(w, h); 5438b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project this.viewType = viewType; 54390a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 5440b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project 5441b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 5442b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project super(source); 5443b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 5444b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 5445b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project 5446b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5447b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 54480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * inside the RecycleBin's scrap heap. This listener is used to free resources 5449b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * associated to Views placed in the RecycleBin. 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 54584df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * associated with the view should be discarded. 54594df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5462b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project void onMovedToScrapHeap(View view); 5463b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 5464b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project 5465b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5466b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 5467105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5478d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 551024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mCurrentScrap = scrapViews[0]; 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void markChildrenDirty() { 551543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mViewTypeCount == 1) { 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrap.get(i).forceLayout(); 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 55231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn for (int i = 0; i < typeCount; i++) { 55241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn final ArrayList<View> scrap = mScrapViews[i]; 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrap.get(j).forceLayout(); 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 5535c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 55441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn for (int i = 0; i < scrapCount; i++) { 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 55611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * 55621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * @param childCount The minimum number of views mActiveViews should hold 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 5575aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 5576aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell // Don't put header or footer views into the scrap heap 5577aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 5578aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 5579aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell // However, we will NOT place them into scrap views. 5580aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell activeViews[i] = child; 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return retrieveFromScrap(mCurrentScrap, position); 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return retrieveFromScrap(mScrapViews[whichScrap], position); 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 56209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void addScrapView(View scrap, int position) { 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 56265be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa return; 56275be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa } 56285be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa 56295be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa // Don't put header or footer views or views that should be ignored 56305be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa // into the scrap heap 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap, false); 563552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 563652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy return; 563752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 563852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 563952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy lp.scrappedFromPosition = position; 564052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 564152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 564252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.dispatchStartTemporaryDetach(); 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrap.dispatchStartTemporaryDetach(); 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 56517b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy } 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 56639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 56649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 56659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.LayoutParams lp 56689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = (AbsListView.LayoutParams) victim.getLayoutParams(); 56699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = lp.viewType; 567013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 56719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(whichScrap)) { 56749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(victim, false); 56779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project victim.dispatchStartTemporaryDetach(); 568513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy lp.scrappedFromPosition = mFirstActivePosition + i; 568613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy scrapViews.add(victim); 568713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 568813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (hasListener) { 568913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy mRecyclerListener.onMovedToScrapHeap(victim); 569013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 569113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 569213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (ViewDebug.TRACE_RECYCLER) { 569313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy ViewDebug.trace(victim, 569413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 569513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy mFirstActivePosition + i, -1); 569613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 569713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 569813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 569913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 570052964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne pruneScrapViews(); 570113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 570213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 570313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 570413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 570513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * (This can happen if an adapter does not recycle its views). 570613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 570713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private void pruneScrapViews() { 570813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int maxViews = mActiveViews.length; 570913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int viewTypeCount = mViewTypeCount; 571013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scrapViews = mScrapViews; 571113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < viewTypeCount; ++i) { 571213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrapPile = scrapViews[i]; 571313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int size = scrapPile.size(); 571413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int extras = size - maxViews; 571513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy size--; 571613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int j = 0; j < extras; j++) { 571713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy removeDetachedView(scrapPile.remove(size--), false); 571813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 571913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 572013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 572113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 572213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 572313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * Puts all views in the scrap heap into the supplied list. 572413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 572513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy void reclaimScrapViews(List<View> views) { 572613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (mViewTypeCount == 1) { 572713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy views.addAll(mCurrentScrap); 572852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne } else { 572913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int viewTypeCount = mViewTypeCount; 573013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scrapViews = mScrapViews; 573113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < viewTypeCount; ++i) { 573213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrapPile = scrapViews[i]; 573352964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne views.addAll(scrapPile); 573413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 573513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 573613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 573713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 573813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 573913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * Updates the cache color hint of all known views. 574013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * 5741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param color The new cache color hint. 5742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void setCacheColorHint(int color) { 5744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mViewTypeCount == 1) { 5745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final ArrayList<View> scrap = mCurrentScrap; 5746637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrapCount = scrap.size(); 5747637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell for (int i = 0; i < scrapCount; i++) { 574813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 5749499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5750499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else { 5751499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final int typeCount = mViewTypeCount; 5752499cb9f516062b654952d282f211bee44c31a3c2Winson Chung for (int i = 0; i < typeCount; i++) { 5753499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final ArrayList<View> scrap = mScrapViews[i]; 57549b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung final int scrapCount = scrap.size(); 57559b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung for (int j = 0; j < scrapCount; j++) { 57563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung scrap.get(j).setDrawingCacheBackgroundColor(color); 57573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 57583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 57593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 57603ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung // Just in case this is called during a layout pass 57613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final View[] activeViews = mActiveViews; 57623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung final int count = activeViews.length; 57639b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung for (int i = 0; i < count; ++i) { 57642148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen final View victim = activeViews[i]; 57659b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung if (victim != null) { 5766499cb9f516062b654952d282f211bee44c31a3c2Winson Chung victim.setDrawingCacheBackgroundColor(color); 5767499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5768499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5769499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 57702148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 57712148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 57722148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 57732148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen int size = scrapViews.size(); 57742148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (size > 0) { 57752148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen // See if we still have a view for this position. 57762148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen for (int i=0; i<size; i++) { 57772148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen View view = scrapViews.get(i); 5778499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (((AbsListView.LayoutParams)view.getLayoutParams()) 5779499cb9f516062b654952d282f211bee44c31a3c2Winson Chung .scrappedFromPosition == position) { 578016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung scrapViews.remove(i); 5781499cb9f516062b654952d282f211bee44c31a3c2Winson Chung return view; 5782499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 57832148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 57842148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen return scrapViews.remove(size - 1); 57852148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } else { 57862148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen return null; 578716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 5788fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } 5789fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen} 579016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung