AbsListView.java revision 335c3b681bf1c118d9bf22d1a508c87173632ec6
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 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 20499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 26c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.os.Bundle; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 311cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 37f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 38539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powellimport android.util.SparseArray; 39f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 40079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 41f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 42637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 43e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganovimport android.view.FocusFinder; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 50f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 5713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 59a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 60c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.view.accessibility.AccessibilityManager; 61a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 620b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 630b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 65b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 66b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 70335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohenimport com.android.internal.R; 71335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 76d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 77d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 78d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 89f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 93499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 94499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 969d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 97539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 98539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1520a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 24814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 24914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 25014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 25214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 270499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 272499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 273499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 274499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 275539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 276539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 277539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 278539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 279539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2802148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2812148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2822148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2832148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2842148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 295079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 296079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 297079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 298079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 299079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3550211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 410458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell PositionScroller mPositionScroller; 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4790b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 489637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 49014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 49114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 49214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 49314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 49414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 49514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 49614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 541d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 542d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 543d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 544d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 545d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 572d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 574d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5796dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5806dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 581161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 5824296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5834296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 58421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 58924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 59024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5974e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 6004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62089935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62589935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 647da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 648da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 649da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 650da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 651da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 65207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 65307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 65407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 655c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 656c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 657c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 658c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 659c1d7e770e123adfa992d013fa294693d077cbc78alanv 6604e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6624e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 663da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 664b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 665b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 666a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 667b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 668b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 669ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 670ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 671ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 672ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 673ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6740b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6780b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 727e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 728e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 729e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 730e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 731e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 732e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 733e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 734e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 735e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 736e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 737e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 738e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 739e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 740e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 741e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 742e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 79520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 79620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 801d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 802d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 803df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 804d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 805d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 806d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 807d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 808d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8094296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8104296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8114296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8124296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 816d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 817d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 82489935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 82589935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 834d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 840539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 841539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 84314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 93814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 98514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 101714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1036bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 104029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 104814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1061bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 106329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 107114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 107729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 108029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 108129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 108229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1085bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1086bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1087bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 109329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 109429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 109529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 109629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 109729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 109829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 109929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 110029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 110129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 110229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 110329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 110429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 110529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 110629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 110729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 110829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 110929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 111029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 111329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 111429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 114314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11742bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11752bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1176637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11774ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11784ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1180637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1181637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 120520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 120620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 120720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 120820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 120920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 121020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 121120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 121220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 121320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 121420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 121520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 121620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 121720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 121820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 121920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 122120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 122520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 123220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 123320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 123420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 123520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 123620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 123720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 124020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 124116bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 124220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 124320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 124520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 125720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 125820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 125920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 126020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 126120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 126220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 126420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13280a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1331a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 1332e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public void addFocusables(ArrayList<View> views, int direction, int focusableMode) { 13332dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov if ((focusableMode & FOCUSABLES_ACCESSIBILITY) == FOCUSABLES_ACCESSIBILITY) { 13342dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov switch(direction) { 13352dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov case ACCESSIBILITY_FOCUS_BACKWARD: { 13362dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov View focusable = (getChildCount() > 0) ? getChildAt(getChildCount() - 1) : this; 1337a90e4512ab81dcd8cdbefdd2ffa0de55fca1caa3Svetoslav Ganov if (focusable.isAccessibilityFocusable()) { 13382dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov views.add(focusable); 13392dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov } 13402dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov } return; 13412dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov case ACCESSIBILITY_FOCUS_FORWARD: { 1342a90e4512ab81dcd8cdbefdd2ffa0de55fca1caa3Svetoslav Ganov if (isAccessibilityFocusable()) { 13432dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov views.add(this); 13442dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov } 13452dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov } return; 1346e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1347e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1348b552d89e901225e2b6aa2602e874ab984c638415Svetoslav Ganov super.addFocusables(views, direction, focusableMode); 1349e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1350e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1351e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 1352e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public View focusSearch(int direction) { 13532dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov return focusSearch(this, direction); 1354e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1355e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1356e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 1357e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public View focusSearch(View focused, int direction) { 1358e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov switch (direction) { 1359e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov case ACCESSIBILITY_FOCUS_FORWARD: { 13602dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // If we are the focused view try giving it to the first child. 13612dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov if (focused == this) { 1362b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov final int childCount = getChildCount(); 1363b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov for (int i = 0; i < childCount; i++) { 1364b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov View child = getChildAt(i); 1365b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (child.getVisibility() == View.VISIBLE) { 1366b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return child; 1367b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1368e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1369f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return super.focusSearch(this, direction); 1370e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 13712dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // Find the item that has the focused view. 13722dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov final int currentPosition = getPositionForView(focused); 1373e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentPosition < 0 || currentPosition >= getCount()) { 1374f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return super.focusSearch(this, direction); 1375e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1376e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // Try to advance focus in the current item. 1377e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View currentItem = getChildAt(currentPosition - getFirstVisiblePosition()); 1378b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (currentItem.getVisibility() == View.VISIBLE) { 1379b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (currentItem instanceof ViewGroup) { 1380b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov ViewGroup currentItemGroup = (ViewGroup) currentItem; 1381b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov View nextFocus = FocusFinder.getInstance().findNextFocus(currentItemGroup, 1382b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov focused, direction); 1383b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (nextFocus != null && nextFocus != currentItemGroup 1384b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov && nextFocus != focused) { 1385b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return nextFocus; 1386b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1387e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1388e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1389e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov // Try to move focus to the next item. 1390e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov final int nextPosition = currentPosition - getFirstVisiblePosition() + 1; 13913016c1ae6a05a67106301fc5ffd7779338288e65Svetoslav Ganov for (int i = nextPosition; i < getChildCount(); i++) { 1392b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov View child = getChildAt(i); 1393b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (child.getVisibility() == View.VISIBLE) { 1394b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return child; 1395b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1396e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 13972dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // No next item start searching from the list. 13982dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov return super.focusSearch(this, direction); 1399f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov } 1400e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov case ACCESSIBILITY_FOCUS_BACKWARD: { 14012dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // If we are the focused search from the view that is 14022dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // as closer to the bottom as possible. 14032dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov if (focused == this) { 14042dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov final int childCount = getChildCount(); 1405b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov for (int i = childCount - 1; i >= 0; i--) { 1406b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov View child = getChildAt(i); 1407b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (child.getVisibility() == View.VISIBLE) { 1408b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return super.focusSearch(child, direction); 1409b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1410f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov } 1411e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return super.focusSearch(this, direction); 1412e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 14132dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // Find the item that has the focused view. 14142dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov final int currentPosition = getPositionForView(focused); 1415e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (currentPosition < 0 || currentPosition >= getCount()) { 1416f76a83cfcf32402edb78666733b5ebf9ec6ac2e2Svetoslav Ganov return super.focusSearch(this, direction); 1417e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 14182dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov 1419e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov View currentItem = getChildAt(currentPosition - getFirstVisiblePosition()); 14202dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov 14212dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // If a list item is the focused view we try to find a view 14222dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // in the previous item since in reverse the item contents 14232dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov // get accessibility focus before the item itself. 14242dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov if (currentItem == focused) { 1425b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov currentItem = null; 1426b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov focused = null; 1427b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov // This list gets accessibility focus after the last item. 1428b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov final int previousPosition = currentPosition - getFirstVisiblePosition() - 1; 1429b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov for (int i = previousPosition; i >= 0; i--) { 1430b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov View child = getChildAt(i); 1431b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (child.getVisibility() == View.VISIBLE) { 1432b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov currentItem = child; 1433b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov break; 1434b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1435b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1436b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (currentItem == null) { 14372dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov return this; 14382dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov } 14392dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov } 14402dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov 1441b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (currentItem.getVisibility() == View.VISIBLE) { 1442b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov // Search into the item. 1443b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (currentItem instanceof ViewGroup) { 1444b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov ViewGroup currentItemGroup = (ViewGroup) currentItem; 1445b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov View nextFocus = FocusFinder.getInstance().findNextFocus(currentItemGroup, 1446b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov focused, direction); 1447b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov if (nextFocus != null && nextFocus != currentItemGroup 1448b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov && nextFocus != focused) { 1449b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return nextFocus; 1450b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov } 1451e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1452b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov 1453b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov // If not item content wants focus we give it to the item. 1454b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return currentItem; 1455e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 14562dda468606fa4e6b4b6b44d38f42e06cb31e2785Svetoslav Ganov 1457b1fa98bb1c30bdfafbe3f251e2f849ce2cd49106Svetoslav Ganov return super.focusSearch(this, direction); 1458e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1459e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1460e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return super.focusSearch(focused, direction); 1461e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1462e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1463e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov /** 1464e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov * @hide 1465e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov */ 1466e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 1467e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov public View findViewToTakeAccessibilityFocusFromHover(View child, View descendant) { 1468e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov final int position = getPositionForView(child); 1469e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov if (position != INVALID_POSITION) { 1470e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return getChildAt(position - mFirstPosition); 1471e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1472e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov return super.findViewToTakeAccessibilityFocusFromHover(child, descendant); 1473e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov } 1474e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov 1475e5dfa47d84668376b84074c04570fb961870adebSvetoslav Ganov @Override 14764e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 14774e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 14784e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 14794e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 14804e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1481d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1482d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1483d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1484d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 14859c3e0e68260fe50456996d75304b73054cbde94aalanv return; 14864e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1487d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1488d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 14894e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14904e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14914e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 14924e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 14934e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 14948a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 14958a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 14968a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 14978a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 14988a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14998a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 15008a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 15018a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 15028a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 15038a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1504fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1505fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1506fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 1507fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1508fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1509fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 1510fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1511a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1512a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1513a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1514a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1515a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 151648d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 151748d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 151848d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1519a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1520a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1521fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1522a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1523a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1524a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1525a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1526a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1527a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1528fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1529a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1530a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1531a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1532a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1533a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1534a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 153548d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 15368a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 15378a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 16026bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1658a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 16592614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1660f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 166114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1681a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 16822614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1683f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 168443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 168543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 168614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 168743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 168843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 168943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 169043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 169114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1692f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1704a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 17052614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1706f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 170743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 170843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 170943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 171043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 171143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 171214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1724f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1725f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1744f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 175499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17657becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 17667becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 17677becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 17687becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 17697becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 17707becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 17717becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 17727becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 17737becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 17747becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 177799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 177899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 177999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 178099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 178199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 178299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1801a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1802a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18039a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 18049a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 18059a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18069a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 180714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 18089a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 18099a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 18109a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 18119a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18129a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 18139a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 18142614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1816335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1817335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1818335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1819335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1842079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 18602614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 18612614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1862a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1863a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1864a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1865a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1866a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1871d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1872d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 18780a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19040a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1918b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1919b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1920b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1921b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1922b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1923b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1924b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1943161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1950079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 19940b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 19950b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 20150b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 20160b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 20170b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 2018637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2019637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 2020637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 2021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 20220b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 20230b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 20240b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 20250b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 2074da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 2075da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 2076da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 2077da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 2078ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 2079da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 2080da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 2081ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 2082da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 2083da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2086d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2087d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 2088d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 2089d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 2094f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 2095f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 2096f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 2097f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 2098f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 2099f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 2100f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 21012c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 21022c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 21032c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 21042c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 2105f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 2108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2119d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2120d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2121d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2122d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2123d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2124d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2125d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2126d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2132d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2133d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2134d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 223721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 223821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 22394e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 224221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 224321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2246539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2247539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2248539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2249539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2250539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22574213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22584213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 22594213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 22604213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2262079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 226621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2267a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2268a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 22724213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22734213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 22744213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 22754213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 22764213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2282aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2283aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2284aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2285aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2286aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2287aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2288aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2289aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2290aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2291aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2292aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2293aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2294aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2295aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2296c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2297c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2298c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2299c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2300c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2301c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2302c1d7e770e123adfa992d013fa294693d077cbc78alanv 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2306c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2307c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2308c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2309c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2310c1d7e770e123adfa992d013fa294693d077cbc78alanv 2311c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23129c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 23139c3e0e68260fe50456996d75304b73054cbde94aalanv 23149c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 23159c3e0e68260fe50456996d75304b73054cbde94aalanv return; 23169c3e0e68260fe50456996d75304b73054cbde94aalanv } 2317c1d7e770e123adfa992d013fa294693d077cbc78alanv 23189c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 2319c1d7e770e123adfa992d013fa294693d077cbc78alanv return; 2320c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2321c1d7e770e123adfa992d013fa294693d077cbc78alanv 23229c3e0e68260fe50456996d75304b73054cbde94aalanv if (position == getSelectedItemPosition()) { 23239c3e0e68260fe50456996d75304b73054cbde94aalanv info.setSelected(true); 23249c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 23259c3e0e68260fe50456996d75304b73054cbde94aalanv } else { 23269c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 23279c3e0e68260fe50456996d75304b73054cbde94aalanv } 23289c3e0e68260fe50456996d75304b73054cbde94aalanv 23299c3e0e68260fe50456996d75304b73054cbde94aalanv if (isClickable()) { 2330c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 2331c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setClickable(true); 2332c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2333c1d7e770e123adfa992d013fa294693d077cbc78alanv 23349c3e0e68260fe50456996d75304b73054cbde94aalanv if (isLongClickable()) { 2335c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 2336c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setLongClickable(true); 2337c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2338c1d7e770e123adfa992d013fa294693d077cbc78alanv 2339c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2340c1d7e770e123adfa992d013fa294693d077cbc78alanv 2341c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2342c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2343fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2344fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2345fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2346fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2347c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 23489c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2349c1d7e770e123adfa992d013fa294693d077cbc78alanv 23509c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 23519c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2352c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2353c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2354c1d7e770e123adfa992d013fa294693d077cbc78alanv 23559c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 23569c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2357fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2358fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2359fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2360c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2361c1d7e770e123adfa992d013fa294693d077cbc78alanv 2362c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 23639c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 23649c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 23659c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 23669c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23679c3e0e68260fe50456996d75304b73054cbde94aalanv } 23689c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2369fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 23709c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 23719c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 23729c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 23739c3e0e68260fe50456996d75304b73054cbde94aalanv } 23749c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2375fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2376fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2377c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2378c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2379fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2380fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2381fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2382c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2383c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2384fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2385c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2386c1d7e770e123adfa992d013fa294693d077cbc78alanv 2387fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2388c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2389c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2390c1d7e770e123adfa992d013fa294693d077cbc78alanv 2391079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2392079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2393079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2394079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2395079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2398e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2399e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2400e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2407a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2408079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2409079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 245020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 245120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 245220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 245320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 245420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 245520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 245620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 245720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 245820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 245920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 246020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 246120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 246220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 246320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 246420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 246520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 246620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 246720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 246820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 246920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 247020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 247120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 247220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 247320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 247420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2480d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2513079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2557079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2575df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2576df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2577df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2578df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2582079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2586ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2587ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2588ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2589ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2596df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2597df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2617079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2618079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2619079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2620079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2621079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2622079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2623079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2624079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2625079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2626079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2630079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26630a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2673e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2674e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2675e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2676e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2677e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2678e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26830e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 26840e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 26850e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 268882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 268982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 269082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 26916a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 26926a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 26936a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 26946a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 26956a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 269682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2697b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27041f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 27051f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 27061f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 270721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 270821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 270921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 27110e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 27120e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 27139d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 27140e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 271682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 271782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 271882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 271982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 272082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 27211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 27231cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 27241cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 27251cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 27261cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27271cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 27281cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 27291cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 27301cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2731d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2732d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2733d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2734d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2735d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2736d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 27374032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2738d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2739d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2740d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2741d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2742d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2743d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2744d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2745d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2746d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2747d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2748d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2749d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2750d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2751d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2752b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2763670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2764670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2765670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2766670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2767670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 27684032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 27694032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 27704032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2771458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2772458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 27730fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2777670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 278697566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 28320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28360a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28410a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2850005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2851005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2852005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2853005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2854005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 28557890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 28567890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 28577890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 28587890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 28597890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 28607890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28740a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29118350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 29151e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 29161e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 29181e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2943fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2944fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2945fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2946fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2947fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2948fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2949fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2950fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2951fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2952fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2953fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2954fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2955fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2956fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2957fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2982df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2983df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2984df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2985df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2986df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2991dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2992dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2993dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2994df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2995dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2997dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 299945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 300045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 300145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 300245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3006dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 3073079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 3074079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 3075e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 310878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 311178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 311678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 311778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 311878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 311978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 312078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 312178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 312278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 313813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 313913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 314013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 314113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 314278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 31439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 314978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 315078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 315178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 315278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 315378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 315478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 315578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 315678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 315778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 315878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 315978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 316078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 316178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 316278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 316378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 316478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 316578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 316678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 316778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 316878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 316978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 317078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 317178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 317278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 317378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 317478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 317578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 317678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 317978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 318078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 318178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 318278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 318378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 318478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 318578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 318678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 318778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 318878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 318978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 319078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 319178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 319278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 319478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 319678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 319778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 319878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 320078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 320178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 320278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 320378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 320478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 320578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 320678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 320778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 320878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 320978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 321078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 321178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 321278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 321378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 321478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 321578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 321678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 321778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 321978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 322078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 322178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 322278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 322378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 322478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 322578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 322678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 322778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 322878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 322978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 323078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3231a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 323278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 323378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 323478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 323578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 323678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3237a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 323878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 323978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 324278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 324478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 324578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 324678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 324778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 324878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 324978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 325078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 325178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 325278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 325378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 325478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 325578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 325678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 325778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 325878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 325978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 326078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 326178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 326278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 326378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 326478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 326578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 326678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 326778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 326878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 326978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 327078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 327178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 327278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 327378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 327478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3275a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 327678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 327778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 327878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 327978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 328078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3281a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 328278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 328578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 328678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 328778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 32889d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 32899d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 32909d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 329178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 329278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32939d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 32949d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 329578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 329678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 329778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 329878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 329978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 330078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 330178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 330278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 330378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 330478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 330578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 330678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 330778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 330878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 330978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 331078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 331178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 331278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 33149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 33219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 33239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33251e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3327637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3328637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3329637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3330637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3331637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33324032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 33334032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 33344032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3336637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3337637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 33380fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3339637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3340637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3341637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3342637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3348dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3349dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3350dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3351dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3352dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3353dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 33541fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 33551fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 33561fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 33571fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 335828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 335928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 336028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 336128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 336228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 336328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 336428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 336528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 337282f3495b146b267f3786997752cef25310176349Romain Guy 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 337713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 3382637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3383637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3384637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 33854032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 33864032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 33874032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3388637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3389044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 3390637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 3391637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3392637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3393044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 3394637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3395637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3397637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 3400637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 3401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 3402637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 3403637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 3404637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 34050a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 34060a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 34070a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 3408637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3409637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 3410637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 3411637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 3412637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3413637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3414637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3415637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 3416637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 3417637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 3418637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3419637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3420637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 3421637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 3422637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34239d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 342479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 34259d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3426637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 3427637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 3428637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 3429637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 3430637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3431637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3432637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3433637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3434637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3435637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3436637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3438fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 3439fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 3440fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 3441fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 3442fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3443fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 34482585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 34492585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 34502585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 34512585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 34522585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 34534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 34546f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 34556f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell if (mDataChanged) { 34566f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // Re-sync everything if data has been changed 34576f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // since the scroll operation can query the adapter. 34586f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell layoutChildren(); 34596f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 34606f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 346778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown startScrollIfNeeded(y); 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 3470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 347178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 3472637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3484498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3485498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3486498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3487498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3488498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 34989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3510005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3511005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3515079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 35206198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3523d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3524d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3525d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3526d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3527d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3529079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 35329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3533d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3536d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3537d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3538d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3539005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3540005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3541079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3544005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3545d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3549079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 35526198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 35536198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3554637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3555637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3556637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3557637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3558637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 35596198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3560637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 35616198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 35626198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35636198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 35646198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 35656198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3566637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 356721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 356821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3570637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3571637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3572637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3574637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3575637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3576637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3577637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 35786198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 35796198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 35806198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 35816198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 35824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35836198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3584f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3585f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3586f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3587d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3588d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3589d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 35904032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 35914032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 35924032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 35936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 359979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 36200a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 36280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 363413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 36354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36441cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 36451cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 36461cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 36471cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 36481cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3666637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3671637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3673637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3674637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3675637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3676637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3677637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3678637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 367913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3682637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3683637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3684637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3685637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 36874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 36884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 36914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 36924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 36934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 36944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 36954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 36964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 36974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 36984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 36994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 37004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 37014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 37024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37049bc30d31322848d61f518c1db43544988faaba8fAdam Powell 37059bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 37069bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 37079bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 37089bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 37099bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 37109bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 37119bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 37129bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 37139bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 37149bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 37159bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 37169bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 37179bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 37189bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 37199bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 37209bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 37219bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 37229bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 37239bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 37249bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37310a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 37320a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 37330a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 37340a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 37350a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 37360a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 37370a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3740637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 374233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 374333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 374433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 374533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 374633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 374733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 374833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 374933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3750275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 375133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 375233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 375333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 375433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 375533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 375633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 375733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 375833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 375933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 376033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 376133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3764637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 376807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 376907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 377007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37729d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 37739d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3774a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 37769d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3777a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 378307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 378407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 378507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 37889d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 37899d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 37909d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3791e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3792a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 37949d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3795a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3796a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3799637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3800637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3805637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3807637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3808637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3809637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 381507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 381607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 381707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 381807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 381907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 382007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 382107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 382207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 382313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 382413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 382513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 382613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 382713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 382813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 382913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 383013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 383113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 383213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 383313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 383413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 383513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 383613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 383713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 383813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 383913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 384013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 384113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 384213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 384313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 384413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 384513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 384613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 384713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 384813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 384913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 385013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 385113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 38560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38571fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 38581fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 38591fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 38601fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 386128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 386228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 386328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 386428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 386528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 386628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 386728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 386828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 38699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 38719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 38729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 38764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 387879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 38854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 38864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 38874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 388979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 38909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 38959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 38969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 38989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 38999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 390113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 390213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 390379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 39044b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 39054b4f40f84e72579417604143e5f42115769649b8Romain Guy } 39069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 39122585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 39132585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 39142585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 39152585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 39162585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 39174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 391813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 391913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 392078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 392813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 39299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 39314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 393213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 39384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 39394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 39404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 39474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 39484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 39494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 39504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 39514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 39524cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 39534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 39544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 39554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 39564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 39584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 39594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 39649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 39679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 39799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 39950046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4010637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4017d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 4018d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 4019d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 4020d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 4021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4022d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 4023d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4024d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4025d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4026d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 4027d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 4028d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4029b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 4030b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 4031d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 4032d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 4033d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 4034d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 4035d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 4036b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 4037d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4038d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4039d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 4040d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4041d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 4042d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 404379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 4044637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 40459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 404779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 40500b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 40541fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 40559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40621cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 40631cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 40641cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 40651cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 40669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 4069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 4070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40721fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4074637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 4075e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 4076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 40800b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 4081044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 4082044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 4083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 40851fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4086637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4087637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 4089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 4090637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 4091637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 4092637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 4093637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 4094637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 4095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 4097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 4099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41004032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 41014032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 41024032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 41034032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 41044032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 4105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41071fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 41100b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 41130b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4114458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 41161fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4119d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 412279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4123d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 412421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 412521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 412621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4127d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 41285e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 41295e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 41305e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 41315e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 41325e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4133d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4134d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4135d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4136d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 414079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 414179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4142d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 41444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4145d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4146d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4147d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4148d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4149d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 41517f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 41527f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 41537f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 41547f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 415579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 415679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 415779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 415879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 41599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 41639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4169637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 41749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4176637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4177637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4178637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4179637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4180637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 41819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4182637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4183637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4184d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4185637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4186637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4187637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4188d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4189637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4190637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 41979d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 41989d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42063cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 42073cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 42083cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4209637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4210637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 42139d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 42151fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4224d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4226637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4227637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4234637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4235637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4236637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4238044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4239044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4242044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4243044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4244044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4245044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4246044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4247044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4248044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4249044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4250044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4251044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4252044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4253044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4254637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4255637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 42561fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4257637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4258637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4259637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4260637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4261637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4262637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4268e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 42694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4270458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4271458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4274e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 42754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4276458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4277458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4278458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4280458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 428152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4282e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4283e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 42844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4285458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4286458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4287458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4289e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 42904032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42914032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4292aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4293aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4294161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4295aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4296aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4297aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4298161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4299aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4300aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4301aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4302e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4303e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4304e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4305e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4306e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4307e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4308458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4309e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 43104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43114bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43120061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 43130061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 43140061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - clampedPosition + 1; 4315458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 43160061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 43170061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = clampedPosition - lastPos + 1; 4318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4319458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 43200061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 4321458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43290061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4330458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4331458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 43324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43331fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4336e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 43374032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43384032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4339458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4340458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4341458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4344aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4345aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4346161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4347aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4348aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4349aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4350161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4351aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4352aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4353aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4354e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4355e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4356e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4357e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4358e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4359e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4361e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 43624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43634bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43640061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 43650061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 4366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4368458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43720061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = firstPos - clampedPosition + 1; 4373458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4374458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4375458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4378458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4379458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4380458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43810061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 4382458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4383458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4384458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4385458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4386458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4387458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43880061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = clampedPosition - lastPos + 1; 4389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4394458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4395458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4396458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4397458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 43980061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 4399458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4400458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4403458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4406458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44070061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 44104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4412458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4413e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4414e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4415322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4416322171b333a1c796fcc1428a96ea1d854a3881faErik } 4417322171b333a1c796fcc1428a96ea1d854a3881faErik 4418aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 44194032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 44204032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4421aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4422aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4423aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4424161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4425aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4426aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4427aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4428161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4429aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4430aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4431aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4432aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4433aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4434aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4435aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4436aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4437aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 44381fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 44391fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 44400061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 4441e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4442e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4443e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4444e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4445e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4446e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4447371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4448e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 44494bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 44500061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (mTargetPos < firstPos) { 44510061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - mTargetPos; 44520061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (mTargetPos > lastPos) { 44530061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = mTargetPos - lastPos; 4454e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4455e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 44560061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 44570b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4458e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4459e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4460e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4461371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 44624ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 44630b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 44640b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4465371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4466234a5715309ea74757780aff6123e3144efb5b69Adam Powell 44671fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4468e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4469e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4470e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4471e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4472e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4473e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4474e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4475e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4476e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4477e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4478e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4479e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4480e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4481e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4482e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4483e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4484e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4485e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4486e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4487e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4488e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4489e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4490e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4491e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4492e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4493e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4494e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4495e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4496e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4497e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4498e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4499e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4500e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4501e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4502e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4503e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4504e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4505e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4506e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4507e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4508e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4509e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4510e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4511e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4512e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4513e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4514e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4515e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4516e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4517e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4518e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4519e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4520e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4521e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4522e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4523e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4526458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4527e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4529458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 45314e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4532458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4533458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4534458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4535458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 45364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 45370b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 45380b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 45390b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4540458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4541458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45431fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4545458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4546458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4547458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4548458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4549458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4550458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 45511fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 45521fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4553458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45541fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 45550b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4557458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 45587e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 45591fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4561458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4562458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4564458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4566029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 45674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4568029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4569029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4570458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4571458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4572458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45761fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4578458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4580458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4582458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 45831fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 45847e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 45860b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4587458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4588458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4589458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45901fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4591458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 45930b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4594458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4595458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4596458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4597458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4599458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4600458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4601458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46021fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4603458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4604458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4605458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4606458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 46070b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 46080b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 46090b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4610458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 46111fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 46121fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4613458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46140b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4615458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4616458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4617458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 46187e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 46191fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4620458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4627458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4628458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4629458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4630458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4632458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 46330b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4634458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4635458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4636458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4637458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4638458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4639458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4640458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 46411fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4642458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 46437e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 46440b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 46451fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4646458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 46471fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4648458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4649458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 46500b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4651458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4653458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4654458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4655458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4656e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4657234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4658234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 46590b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4660234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4661234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4662e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4663371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4664234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4665234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4666e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4667371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4668e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 46694032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4670e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 46714032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 46724032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 46734032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 46744032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 46754032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46764032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 46774032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 46784032252c997be9f5d013054dc23ace855007b3a5Adam Powell 46794032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 46804032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 46810b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 46820b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46830b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46841fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4685e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 46860b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 46870b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 46880b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 46891fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4690e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4691e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4692e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4693234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 46940b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 46950b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 46960b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4697e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4698e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4699e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4700e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4703458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4705458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4707458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 47084bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 47094bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 47104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 47114bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 47124bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 47134bede9e425875542976a422222510fa4056a8339Romain Guy */ 47144bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 47154bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 47164bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 47174bede9e425875542976a422222510fa4056a8339Romain Guy } 47184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 47194bede9e425875542976a422222510fa4056a8339Romain Guy } 472021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 472121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 472221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 472321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 47244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 472521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 472621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 472721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 472821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 472921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 47304e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 47314bede9e425875542976a422222510fa4056a8339Romain Guy /** 4732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4733458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4734458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4735458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4736458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4737458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4739458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4740458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4741458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4742322171b333a1c796fcc1428a96ea1d854a3881faErik 4743322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4744322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4745322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4746322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4747322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4748322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4749322171b333a1c796fcc1428a96ea1d854a3881faErik * 4750322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4751322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4752322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4753322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4754322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4755322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4756322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4757322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4758322171b333a1c796fcc1428a96ea1d854a3881faErik } 4759322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4760322171b333a1c796fcc1428a96ea1d854a3881faErik } 4761322171b333a1c796fcc1428a96ea1d854a3881faErik 4762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4763e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4764e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4765e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4766e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4767e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4768e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4769e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4770e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4771e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4772e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4773e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4774e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4775e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4776e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4777e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4778e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4779e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4780e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4781458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4782458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4783458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 47844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4790458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4792458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4793458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4794458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4796458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4798458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4799458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4800458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4801458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 48020b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 48030b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 48040b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 48050b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4806458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4807458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4808458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48094032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4810299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 48114032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 48124032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 48134032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 48144032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 48154032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 48164032252c997be9f5d013054dc23ace855007b3a5Adam Powell 481779303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 48184032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4819aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 48204032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 48214032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 48224032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 48234032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 48244032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 48254032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 48260046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 48270b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4828299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4831499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4832499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4833499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4834499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4835499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4836499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4837499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4838499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4839499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4840499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4841499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4842499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4843499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4844499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4845499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4846499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4847499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4848499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4849499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4850499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4851499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4852499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4853499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4854499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4855499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4856499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4857499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4858499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4859499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4860499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4861499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4862499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4863499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4864499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4865499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4866499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 48689d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 48710211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 48769d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 48779d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 48789d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 48799d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 48809d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 48819d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 48829d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 48839d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 48849d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 48859d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48869d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 48879d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 48889d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48896dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48906dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 48919d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 48929d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 48939d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4903458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4916bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4917bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4918bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4919bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4920bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4921bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4922bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4923bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4924bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4925bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4927bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4928bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4946637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4947637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4948bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4949637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4950637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4951637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4952637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4953bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4954637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 49580a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 49590a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 49600a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 49610a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49630a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4964637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4969029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4970029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4971029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4972029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 49818c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 49828c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 49838c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 49848c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4985458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4993079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 49988c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 49998c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 50008c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 50018c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 5002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 5003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 5004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 5005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 5006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 5007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 5008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 5009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 5010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 5011079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 5023539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 5024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 5025539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 50269d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 50279d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 50289d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 50291fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 50309d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 50319d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 5032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 5035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 5036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 50374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 5039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 5040458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5043029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 50442a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 50452a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 5046079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 5047079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5048079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 5049079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 5050079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 5051079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 50522a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 5053079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5054079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 5055029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 5056029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 5057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 5058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 5059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 50604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 5096ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 5097ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 5098ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 51274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 5133637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 5134637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 5135637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 5136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51564e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 51574e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 51588d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 51598d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 51604e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 51618d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5162becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5163becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5164becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 51654e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 51668d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 51674e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 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 mResurrectToPosition = INVALID_POSITION; 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 52634032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 52644032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 52654032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 52723c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 528314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 528414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 528514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 528614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 528714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 528814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 528914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 529014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 529114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 529214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 529314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 529414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 529514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 529614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 529714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 529814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 529914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 530014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 530114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 530214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 530314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 530414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 530514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 530614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 530714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 530814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 530914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 531014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 531114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 531214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 531314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 531414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 531514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 531614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 531714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 531814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 531914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 532014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 532114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 532214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 532314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 532414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 532514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 532614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 532714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5331ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5332ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 533414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 533514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 533614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5338539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5339539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5340539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 534114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 534214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53500785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5353da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5354da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5355da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5356da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5357da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5358da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 53590785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5360ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 53610785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 53620785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5363ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5364ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 53650785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 53660785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 53670785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53680785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 53690785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 53700785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 53710785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 54069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5464079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 546843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 546943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 547043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 547143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 547243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 547343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 547443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 547543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 547643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 547743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 547843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 547943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 548043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 548143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 548243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 548324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 548443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 548543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5489d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 55014df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5502b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 55039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 55049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5508b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 55109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 55119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 551224443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5515b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55614e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 55624e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 55634e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 55644e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 55654e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 55664e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 55674e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 55704e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 55714e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5592b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 560883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 56098d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 56108d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5611b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5612b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5613b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5614b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 561583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 561683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 561783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 561883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 561983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 562083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5626cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5630b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5635105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5657b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5658b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5659b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5660b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5661c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5662c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5663c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5664c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5665c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 56661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 56671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 56681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 56691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 56701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 56711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 56721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 56731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 56741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 56751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 56771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 56781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 56791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 56801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 56811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 56821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 56831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 56841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 56851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 56861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 56871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 56891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 56911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 56921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 56931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 56941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 56951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 56961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5697c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 56981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 56991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 57001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 57011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 57021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 57031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 57041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 57051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5706c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5707c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5708b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 57090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5710b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5711b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5712b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5713b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5714b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5715b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5716b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5717b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 57180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5719b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 57239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 57284df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 57294df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5732b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5733b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5734b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5735b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5736b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5737105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5748d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 578024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 578543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 57941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 58011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 58021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5805c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 58141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 58259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 58321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 58389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 58409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 58419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5845aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5846aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5847aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5848aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5849aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5850aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 58529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 58569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 58589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 58619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 58629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 58639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 58679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 58689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 58769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 58779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 58819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 58839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 58849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 58879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 58909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 58919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 58929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 58965be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 58975be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 58985be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 58995be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 59005be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 59019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 590552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 590652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 590752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 590852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 590952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 591052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 591152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 591252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 59139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 59179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 59189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 59209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59217b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 59239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 59249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 59329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 59349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 59359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 59369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 59389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 59399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 594013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 59419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 59429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 59439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 5944c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 59459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 59469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 59479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 59489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 59529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 59539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5959637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 596213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5963499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5964499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5965499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5966499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5967499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 59689b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 59699b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 59703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 59713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 59723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 59733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 59743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 59753ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 59763ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 59779b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 59782148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 59799b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5980499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5981335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter.isDataReady()) { 5982335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen setAdapter(mRemoteAdapter); 5983335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 5984499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5985499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5986499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 59872148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 59882148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 59892148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 59902148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 59912148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 59922148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 59932148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 59942148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5995499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5996499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 599716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5998499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5999499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 60002148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 60012148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 60022148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 60032148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 600416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6005fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 6006fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 600716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 6008499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 600916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 6010499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6011499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6012499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6013499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 6014499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 6015499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 6016fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 6017fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 6018fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 6019fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 6020fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 6021499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 6022499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 6023499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 6024b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 6025b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 6026b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 6027b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 6028b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 6029b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 6030b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6031b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 6032b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 6033b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 60349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 60359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 60369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 60379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 60399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 60409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 60429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 60439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 60459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 60469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6048b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 6049b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6050b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 6051b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 6052b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6053b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6054b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6055b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6056b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 6057b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 6058b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 6059b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 6060b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 6061b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 6062b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6063b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6064b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 6065b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 60669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 6068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 6069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 6070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 6071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 6073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 6074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 6075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 6076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 6077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 6078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 6079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 6080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 6081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 6082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 6084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 6087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 6088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 6090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 6091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 6094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 6095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 6096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 6097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 6098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 6100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 6103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 6104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 6108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 6111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 6112f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 6113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6114f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 61369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 61379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 61399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 61419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 61429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6143bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 61449bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 61459bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 61469bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 61479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 61489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61494df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 61504df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 61514df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 61524df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 61534df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 61544df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6155bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 61564df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 61574df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 61580bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 61590bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 61600bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 61610bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 61620bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 61630bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 61640bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 61650bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6166bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 61670bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 61680bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6169079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6170079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6171079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6172079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6173079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6174079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6175079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6176539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6177539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6178539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6179539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6180539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 61819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 61829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 61839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 61869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 61879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 61909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 61919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 61929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 61959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 61969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 62019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 62029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 62039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 62059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 62069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 62089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 62109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 62119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 62129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 62149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 62169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 62209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 62219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 62229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 62239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 62249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 62269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 62279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 62299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 62309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 62339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 62359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 62389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 62399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 62409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 62419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 62439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 62469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 62489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 62509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 62529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6253539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6254539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6255539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6256539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 62589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 62599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 62609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 62629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 62639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 62649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 62659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 62679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 62689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 62699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6271f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6272f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6273f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6274f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6275f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6276f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6277f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6278f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6279f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6280f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6281f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6282f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6283f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6284f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6285f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6286f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6287f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6288539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6289539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6290539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6291539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6292539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6293539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6294f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 62950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 62969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 62979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 62989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 63029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 63049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 63059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 63069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 63079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 63089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 63099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 63129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 63139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 63149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 63159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 63169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 63179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6320539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6321539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6322539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 63239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 63279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 63299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 63309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 63319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 63339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 63349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 63359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 63379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 63399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 63409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 63419c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 63429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 63439c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 63449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 63459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 63464df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 63479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 63539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 63549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 63569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 63579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 63599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 63609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 63619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 63629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 63639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 63649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 63659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 63679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6369539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6370539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6371539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6372539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6373539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int index = mTransientStateViews.indexOfKey(position); 6374539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (index < 0) { 6375539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6376539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6377539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final View result = mTransientStateViews.valueAt(index); 6378539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.removeAt(index); 6379539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return result; 6380539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6381539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6382539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6383539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6384539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6385539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6386539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6387539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6388539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6389539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6390539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 63919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 63939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 63959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6396079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 63979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 63999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6400079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 64019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 64049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6407539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 64089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 64099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 64109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6411079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 64129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 64139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 64149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 64159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6417539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6418539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 64199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 64209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 64219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6422539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6423539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6424539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || scrapHasTransientState) { 6425539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6426539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6427539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6428539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6429539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6430539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6431539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6432539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6433539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6434057a585fba01d92c38f27a8c080622dfd0c6f556Adam Powell scrap.dispatchStartTemporaryDetach(); 6435539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(position, scrap); 64369b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 64379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 64389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6440539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 64419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 64429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 64439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 64449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 64459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6447c1d7e770e123adfa992d013fa294693d077cbc78alanv scrap.setAccessibilityDelegate(null); 64489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 64499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 64509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6454539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6455539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6456539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6457539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6458539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6459539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6460539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6461539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6462539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6463539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6464539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6465539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6466539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6467539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 64689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 64699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 64719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 64729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 64739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 64749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 64769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6477a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 64789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 64799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6480079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6481079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6482079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 64839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 64859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6486539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6487539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 64889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6489539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || 6490539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 64919b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 64929b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6493539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6494539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6495539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6496539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6497539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(mFirstActivePosition + i, victim); 6498539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 64999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 65009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 65039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 65049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6505a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6506079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 65079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 65089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6509c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 65109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 65119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 65129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 65179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 65219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 65229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 65249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 65259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 65269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 65279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 65289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 65299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 65309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 65319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 65329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 65339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 65349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6536bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6537bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6538bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6539bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6540bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6541bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6542bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6543bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6544bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6545bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 65469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 65489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 65499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 65509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 65519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 65529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 65539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 65549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 65559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 65569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 65579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 65589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 65599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 65609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 65629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 656352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 656452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 656552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 656652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 656752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 656852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 656952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 657052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 657152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 657252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 657352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 657452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 657552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 657652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 657752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 657852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 657952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 658052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 658152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6582266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 658352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 658452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 658552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 658652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 658752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 658852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 658952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 659052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 659152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 659252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 659352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 659452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 659552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 65969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6597079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6598079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6599079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6600079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6601079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6602079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6603079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6604079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6605079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6606079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6607079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6608079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6609079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6610079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6611079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6612079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6613079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6614079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 66159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6616